mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-12-26 22:09:43 +03:00
1817 lines
44 KiB
C
1817 lines
44 KiB
C
/*
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* Copyright 2006 James Bursa <bursa@users.sourceforge.net>
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* Copyright 2006 Richard Wilson <info@tinct.net>
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* Copyright 2008 Michael Drake <tlsa@netsurf-browser.org>
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* Copyright 2009 Paul Blokus <paul_pl@users.sourceforge.net>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* \file
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* implementation of user interaction with a CONTENT_HTML.
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*/
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#include <assert.h>
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#include <stdbool.h>
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#include <string.h>
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#include <dom/dom.h>
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#include "utils/corestrings.h"
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#include "utils/messages.h"
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#include "utils/utils.h"
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#include "utils/log.h"
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#include "utils/nsoption.h"
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#include "netsurf/content.h"
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#include "netsurf/browser_window.h"
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#include "netsurf/mouse.h"
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#include "netsurf/misc.h"
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#include "netsurf/layout.h"
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#include "netsurf/keypress.h"
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#include "content/hlcache.h"
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#include "content/textsearch.h"
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#include "desktop/frames.h"
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#include "desktop/scrollbar.h"
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#include "desktop/selection.h"
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#include "desktop/textarea.h"
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#include "javascript/js.h"
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#include "desktop/gui_internal.h"
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#include "html/box.h"
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#include "html/box_textarea.h"
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#include "html/box_inspect.h"
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#include "html/font.h"
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#include "html/form_internal.h"
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#include "html/private.h"
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#include "html/imagemap.h"
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#include "html/interaction.h"
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/**
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* Get pointer shape for given box
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*
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* \param box box in question
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* \param imagemap whether an imagemap applies to the box
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*/
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static browser_pointer_shape get_pointer_shape(struct box *box, bool imagemap)
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{
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browser_pointer_shape pointer;
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css_computed_style *style;
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enum css_cursor_e cursor;
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lwc_string **cursor_uris;
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if (box->type == BOX_FLOAT_LEFT || box->type == BOX_FLOAT_RIGHT)
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style = box->children->style;
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else
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style = box->style;
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if (style == NULL)
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return BROWSER_POINTER_DEFAULT;
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cursor = css_computed_cursor(style, &cursor_uris);
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switch (cursor) {
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case CSS_CURSOR_AUTO:
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if (box->href || (box->gadget &&
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(box->gadget->type == GADGET_IMAGE ||
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box->gadget->type == GADGET_SUBMIT)) ||
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imagemap) {
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/* link */
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pointer = BROWSER_POINTER_POINT;
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} else if (box->gadget &&
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(box->gadget->type == GADGET_TEXTBOX ||
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box->gadget->type == GADGET_PASSWORD ||
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box->gadget->type == GADGET_TEXTAREA)) {
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/* text input */
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pointer = BROWSER_POINTER_CARET;
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} else {
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/* html content doesn't mind */
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pointer = BROWSER_POINTER_AUTO;
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}
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break;
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case CSS_CURSOR_CROSSHAIR:
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pointer = BROWSER_POINTER_CROSS;
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break;
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case CSS_CURSOR_POINTER:
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pointer = BROWSER_POINTER_POINT;
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break;
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case CSS_CURSOR_MOVE:
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pointer = BROWSER_POINTER_MOVE;
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break;
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case CSS_CURSOR_E_RESIZE:
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pointer = BROWSER_POINTER_RIGHT;
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break;
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case CSS_CURSOR_W_RESIZE:
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pointer = BROWSER_POINTER_LEFT;
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break;
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case CSS_CURSOR_N_RESIZE:
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pointer = BROWSER_POINTER_UP;
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break;
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case CSS_CURSOR_S_RESIZE:
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pointer = BROWSER_POINTER_DOWN;
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break;
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case CSS_CURSOR_NE_RESIZE:
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pointer = BROWSER_POINTER_RU;
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break;
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case CSS_CURSOR_SW_RESIZE:
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pointer = BROWSER_POINTER_LD;
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break;
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case CSS_CURSOR_SE_RESIZE:
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pointer = BROWSER_POINTER_RD;
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break;
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case CSS_CURSOR_NW_RESIZE:
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pointer = BROWSER_POINTER_LU;
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break;
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case CSS_CURSOR_TEXT:
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pointer = BROWSER_POINTER_CARET;
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break;
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case CSS_CURSOR_WAIT:
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pointer = BROWSER_POINTER_WAIT;
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break;
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case CSS_CURSOR_PROGRESS:
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pointer = BROWSER_POINTER_PROGRESS;
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break;
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case CSS_CURSOR_HELP:
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pointer = BROWSER_POINTER_HELP;
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break;
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default:
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pointer = BROWSER_POINTER_DEFAULT;
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break;
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}
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return pointer;
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}
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/**
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* Start drag scrolling the contents of a box
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*
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* \param box the box to be scrolled
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* \param x x ordinate of initial mouse position
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* \param y y ordinate
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*/
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static void html_box_drag_start(struct box *box, int x, int y)
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{
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int box_x, box_y;
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int scroll_mouse_x, scroll_mouse_y;
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box_coords(box, &box_x, &box_y);
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if (box->scroll_x != NULL) {
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scroll_mouse_x = x - box_x ;
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scroll_mouse_y = y - (box_y + box->padding[TOP] +
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box->height + box->padding[BOTTOM] -
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SCROLLBAR_WIDTH);
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scrollbar_start_content_drag(box->scroll_x,
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scroll_mouse_x, scroll_mouse_y);
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} else if (box->scroll_y != NULL) {
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scroll_mouse_x = x - (box_x + box->padding[LEFT] +
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box->width + box->padding[RIGHT] -
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SCROLLBAR_WIDTH);
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scroll_mouse_y = y - box_y;
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scrollbar_start_content_drag(box->scroll_y,
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scroll_mouse_x, scroll_mouse_y);
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}
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}
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/**
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* End overflow scroll scrollbar drags
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*
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* \param html html content
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* \param mouse state of mouse buttons and modifier keys
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* \param x coordinate of mouse
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* \param y coordinate of mouse
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* \param dir Direction of drag
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*/
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static size_t html_selection_drag_end(struct html_content *html,
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browser_mouse_state mouse, int x, int y, int dir)
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{
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int pixel_offset;
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struct box *box;
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int dx, dy;
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size_t idx = 0;
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box = box_pick_text_box(html, x, y, dir, &dx, &dy);
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if (box) {
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plot_font_style_t fstyle;
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font_plot_style_from_css(&html->unit_len_ctx, box->style, &fstyle);
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guit->layout->position(&fstyle, box->text, box->length,
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dx, &idx, &pixel_offset);
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idx += box->byte_offset;
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}
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return idx;
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}
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/**
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* Helper for file gadgets to store their filename.
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*
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* Stores the filename unencoded on the dom node associated with the
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* gadget.
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*
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* \todo Get rid of this crap eventually
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*
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* \param operation DOM operation
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* \param key DOM node key being considerd
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* \param _data The data assocated with the key
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* \param src The source DOM node.
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* \param dst The destination DOM node.
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*/
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static void
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html__image_coords_dom_user_data_handler(dom_node_operation operation,
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dom_string *key,
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void *_data,
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struct dom_node *src,
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struct dom_node *dst)
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{
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struct image_input_coords *oldcoords, *coords = _data, *newcoords;
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if (!dom_string_isequal(corestring_dom___ns_key_image_coords_node_data,
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key) || coords == NULL) {
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return;
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}
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switch (operation) {
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case DOM_NODE_CLONED:
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newcoords = calloc(1, sizeof(*newcoords));
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if (newcoords != NULL) {
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*newcoords = *coords;
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if (dom_node_set_user_data(dst,
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corestring_dom___ns_key_image_coords_node_data,
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newcoords,
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html__image_coords_dom_user_data_handler,
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&oldcoords) == DOM_NO_ERR) {
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free(oldcoords);
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}
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}
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break;
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case DOM_NODE_DELETED:
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free(coords);
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break;
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case DOM_NODE_RENAMED:
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case DOM_NODE_IMPORTED:
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case DOM_NODE_ADOPTED:
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break;
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default:
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NSLOG(netsurf, INFO, "User data operation not handled.");
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assert(0);
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}
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}
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/**
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* End overflow scroll scrollbar drags
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*
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* \param scrollbar scrollbar widget
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* \param mouse state of mouse buttons and modifier keys
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* \param x coordinate of mouse
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* \param y coordinate of mouse
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*/
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static void
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html_overflow_scroll_drag_end(struct scrollbar *scrollbar,
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browser_mouse_state mouse,
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int x, int y)
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{
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int scroll_mouse_x, scroll_mouse_y, box_x, box_y;
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struct html_scrollbar_data *data = scrollbar_get_data(scrollbar);
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struct box *box;
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box = data->box;
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box_coords(box, &box_x, &box_y);
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if (scrollbar_is_horizontal(scrollbar)) {
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scroll_mouse_x = x - box_x;
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scroll_mouse_y = y - (box_y + box->padding[TOP] +
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box->height + box->padding[BOTTOM] -
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SCROLLBAR_WIDTH);
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scrollbar_mouse_drag_end(scrollbar, mouse,
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scroll_mouse_x, scroll_mouse_y);
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} else {
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scroll_mouse_x = x - (box_x + box->padding[LEFT] +
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box->width + box->padding[RIGHT] -
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SCROLLBAR_WIDTH);
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scroll_mouse_y = y - box_y;
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scrollbar_mouse_drag_end(scrollbar, mouse,
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scroll_mouse_x, scroll_mouse_y);
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}
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}
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/**
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* handle html mouse action when select menu is open
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*
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*/
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static nserror
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mouse_action_select_menu(html_content *html,
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struct browser_window *bw,
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browser_mouse_state mouse,
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int x, int y)
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{
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struct box *box;
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int box_x = 0;
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int box_y = 0;
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const char *status;
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int width, height;
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struct hlcache_handle *bw_content;
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browser_drag_type bw_drag_type;
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assert(html->visible_select_menu != NULL);
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bw_drag_type = browser_window_get_drag_type(bw);
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if (bw_drag_type != DRAGGING_NONE && !mouse) {
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/* drag end: select menu */
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form_select_mouse_drag_end(html->visible_select_menu, mouse, x, y);
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}
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box = html->visible_select_menu->box;
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box_coords(box, &box_x, &box_y);
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box_x -= box->border[LEFT].width;
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box_y += box->height + box->border[BOTTOM].width +
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box->padding[BOTTOM] + box->padding[TOP];
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status = form_select_mouse_action(html->visible_select_menu,
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mouse,
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x - box_x,
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y - box_y);
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if (status != NULL) {
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/* set status if menu still open */
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union content_msg_data msg_data;
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msg_data.explicit_status_text = status;
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content_broadcast((struct content *)html,
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CONTENT_MSG_STATUS,
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&msg_data);
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return NSERROR_OK;
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}
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/* close menu and redraw where it was */
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form_select_get_dimensions(html->visible_select_menu, &width, &height);
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html->visible_select_menu = NULL;
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bw_content = browser_window_get_content(bw);
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content_request_redraw(bw_content,
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box_x,
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box_y,
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width,
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height);
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return NSERROR_OK;
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}
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/**
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* handle html mouse action when a selection drag is being performed
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*
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*/
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static nserror
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mouse_action_drag_selection(html_content *html,
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struct browser_window *bw,
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browser_mouse_state mouse,
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int x, int y)
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{
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struct box *box;
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int dir = -1;
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int dx, dy;
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size_t idx;
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union html_drag_owner drag_owner;
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int pixel_offset;
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plot_font_style_t fstyle;
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if (!mouse) {
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/* End of selection drag */
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if (selection_dragging_start(html->sel)) {
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dir = 1;
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}
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idx = html_selection_drag_end(html, mouse, x, y, dir);
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if (idx != 0) {
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selection_track(html->sel, mouse, idx);
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}
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drag_owner.no_owner = true;
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html_set_drag_type(html, HTML_DRAG_NONE, drag_owner, NULL);
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return NSERROR_OK;
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}
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if (selection_dragging_start(html->sel)) {
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dir = 1;
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}
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box = box_pick_text_box(html, x, y, dir, &dx, &dy);
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if (box != NULL) {
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font_plot_style_from_css(&html->unit_len_ctx, box->style, &fstyle);
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guit->layout->position(&fstyle,
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box->text,
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box->length,
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dx,
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&idx,
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&pixel_offset);
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selection_track(html->sel, mouse, box->byte_offset + idx);
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}
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return NSERROR_OK;
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}
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/**
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* handle html mouse action when a scrollbar drag is being performed
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*
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*/
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static nserror
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mouse_action_drag_scrollbar(html_content *html,
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struct browser_window *bw,
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browser_mouse_state mouse,
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int x, int y)
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{
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struct scrollbar *scr;
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struct html_scrollbar_data *data;
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struct box *box;
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int box_x = 0;
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int box_y = 0;
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const char *status;
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int scroll_mouse_x = 0, scroll_mouse_y = 0;
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scrollbar_mouse_status scrollbar_status;
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scr = html->drag_owner.scrollbar;
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if (!mouse) {
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/* drag end: scrollbar */
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html_overflow_scroll_drag_end(scr, mouse, x, y);
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}
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data = scrollbar_get_data(scr);
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box = data->box;
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box_coords(box, &box_x, &box_y);
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if (scrollbar_is_horizontal(scr)) {
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scroll_mouse_x = x - box_x ;
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scroll_mouse_y = y - (box_y + box->padding[TOP] +
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box->height + box->padding[BOTTOM] -
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SCROLLBAR_WIDTH);
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scrollbar_status = scrollbar_mouse_action(scr,
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mouse,
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scroll_mouse_x,
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scroll_mouse_y);
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} else {
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scroll_mouse_x = x - (box_x + box->padding[LEFT] +
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box->width + box->padding[RIGHT] -
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SCROLLBAR_WIDTH);
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scroll_mouse_y = y - box_y;
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scrollbar_status = scrollbar_mouse_action(scr,
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mouse,
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scroll_mouse_x,
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scroll_mouse_y);
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}
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status = scrollbar_mouse_status_to_message(scrollbar_status);
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if (status != NULL) {
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union content_msg_data msg_data;
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msg_data.explicit_status_text = status;
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content_broadcast((struct content *)html,
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CONTENT_MSG_STATUS,
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&msg_data);
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}
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return NSERROR_OK;
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}
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|
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/**
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* handle mouse actions while dragging in a text area
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*/
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static nserror
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mouse_action_drag_textarea(html_content *html,
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struct browser_window *bw,
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browser_mouse_state mouse,
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int x, int y)
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{
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struct box *box;
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int box_x = 0;
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int box_y = 0;
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box = html->drag_owner.textarea;
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assert(box->gadget != NULL);
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assert(box->gadget->type == GADGET_TEXTAREA ||
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box->gadget->type == GADGET_PASSWORD ||
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box->gadget->type == GADGET_TEXTBOX);
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box_coords(box, &box_x, &box_y);
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textarea_mouse_action(box->gadget->data.text.ta,
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mouse,
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x - box_x,
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y - box_y);
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/* TODO: Set appropriate statusbar message */
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return NSERROR_OK;
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}
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|
|
|
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/**
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* handle mouse actions while dragging in a content
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*/
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static nserror
|
|
mouse_action_drag_content(html_content *html,
|
|
struct browser_window *bw,
|
|
browser_mouse_state mouse,
|
|
int x, int y)
|
|
{
|
|
struct box *box;
|
|
int box_x = 0;
|
|
int box_y = 0;
|
|
|
|
box = html->drag_owner.content;
|
|
assert(box->object != NULL);
|
|
|
|
box_coords(box, &box_x, &box_y);
|
|
content_mouse_track(box->object,
|
|
bw, mouse,
|
|
x - box_x,
|
|
y - box_y);
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* local structure containing all the mouse action state information
|
|
*/
|
|
struct mouse_action_state {
|
|
struct {
|
|
const char *status; /**< status text */
|
|
browser_pointer_shape pointer; /**< pointer shape */
|
|
enum {
|
|
ACTION_NONE,
|
|
ACTION_NOSEND, /**< do not send status and pointer message */
|
|
ACTION_SUBMIT,
|
|
ACTION_GO,
|
|
ACTION_JS,
|
|
} action;
|
|
} result;
|
|
|
|
/** dom node */
|
|
struct dom_node *node;
|
|
|
|
/** html object */
|
|
struct {
|
|
struct box *box;
|
|
int pos_x;
|
|
int pos_y;
|
|
} html_object;
|
|
|
|
/** non html object */
|
|
hlcache_handle *object;
|
|
|
|
/** iframe */
|
|
struct browser_window *iframe;
|
|
|
|
/** link either from href or imagemap */
|
|
struct {
|
|
struct box *box;
|
|
nsurl *url;
|
|
const char *target;
|
|
bool is_imagemap;
|
|
} link;
|
|
|
|
/** gadget */
|
|
struct {
|
|
struct form_control *control;
|
|
struct box *box;
|
|
int box_x;
|
|
int box_y;
|
|
const char *target;
|
|
} gadget;
|
|
|
|
/** title */
|
|
const char *title;
|
|
|
|
/** candidate box for drag operation */
|
|
struct box *drag_candidate;
|
|
|
|
/** scrollbar */
|
|
struct {
|
|
struct scrollbar *bar;
|
|
int mouse_x;
|
|
int mouse_y;
|
|
} scroll;
|
|
|
|
/** text in box */
|
|
struct {
|
|
struct box *box;
|
|
int box_x;
|
|
} text;
|
|
};
|
|
|
|
|
|
/**
|
|
* iterate the box tree for deepest node at coordinates
|
|
*
|
|
* extracts mouse action node information by descending through
|
|
* visible boxes setting more specific values for:
|
|
*
|
|
* box - deepest box at point
|
|
* html_object_box - html object
|
|
* html_object_pos_x - html object
|
|
* html_object_pos_y - html object
|
|
* object - non html object
|
|
* iframe - iframe
|
|
* url - href or imagemap
|
|
* target - href or imagemap or gadget
|
|
* url_box - href or imagemap
|
|
* imagemap - imagemap
|
|
* gadget - gadget
|
|
* gadget_box - gadget
|
|
* gadget_box_x - gadget
|
|
* gadget_box_y - gadget
|
|
* title - title
|
|
* pointer
|
|
*
|
|
* drag_candidate - first box with scroll
|
|
* padding_left - box with scroll
|
|
* padding_right
|
|
* padding_top
|
|
* padding_bottom
|
|
* scrollbar - inside padding box stops decent
|
|
* scroll_mouse_x - inside padding box stops decent
|
|
* scroll_mouse_y - inside padding box stops decent
|
|
*
|
|
* text_box - text box
|
|
* text_box_x - text_box
|
|
*/
|
|
static nserror
|
|
get_mouse_action_node(html_content *html,
|
|
int x, int y,
|
|
struct mouse_action_state *man)
|
|
{
|
|
struct box *box;
|
|
int box_x = 0;
|
|
int box_y = 0;
|
|
|
|
/* initialise the mouse action state data */
|
|
memset(man, 0, sizeof(struct mouse_action_state));
|
|
man->node = html->layout->node; /* Default dom node to the <HTML> */
|
|
man->result.pointer = BROWSER_POINTER_DEFAULT;
|
|
|
|
/* search the box tree for a link, imagemap, form control, or
|
|
* box with scrollbars
|
|
*/
|
|
box = html->layout;
|
|
|
|
/* Consider the margins of the html page now */
|
|
box_x = box->margin[LEFT];
|
|
box_y = box->margin[TOP];
|
|
|
|
do {
|
|
/* skip hidden boxes */
|
|
if ((box->style != NULL) &&
|
|
(css_computed_visibility(box->style) ==
|
|
CSS_VISIBILITY_HIDDEN)) {
|
|
goto next_box;
|
|
}
|
|
|
|
if (box->node != NULL) {
|
|
man->node = box->node;
|
|
}
|
|
|
|
if (box->object) {
|
|
if (content_get_type(box->object) == CONTENT_HTML) {
|
|
man->html_object.box = box;
|
|
man->html_object.pos_x = box_x;
|
|
man->html_object.pos_y = box_y;
|
|
} else {
|
|
man->object = box->object;
|
|
}
|
|
}
|
|
|
|
if (box->iframe) {
|
|
man->iframe = box->iframe;
|
|
}
|
|
|
|
if (box->href) {
|
|
man->link.url = box->href;
|
|
man->link.target = box->target;
|
|
man->link.box = box;
|
|
man->link.is_imagemap = false;
|
|
}
|
|
|
|
if (box->usemap) {
|
|
man->link.url = imagemap_get(html,
|
|
box->usemap,
|
|
box_x,
|
|
box_y,
|
|
x, y,
|
|
&man->link.target);
|
|
man->link.box = box;
|
|
man->link.is_imagemap = true;
|
|
}
|
|
|
|
if (box->gadget) {
|
|
man->gadget.control = box->gadget;
|
|
man->gadget.box = box;
|
|
man->gadget.box_x = box_x;
|
|
man->gadget.box_y = box_y;
|
|
if (box->gadget->form) {
|
|
man->gadget.target = box->gadget->form->target;
|
|
}
|
|
}
|
|
|
|
if (box->title) {
|
|
man->title = box->title;
|
|
}
|
|
|
|
man->result.pointer = get_pointer_shape(box, false);
|
|
|
|
if ((box->scroll_x != NULL) ||
|
|
(box->scroll_y != NULL)) {
|
|
int padding_left;
|
|
int padding_right;
|
|
int padding_top;
|
|
int padding_bottom;
|
|
|
|
if (man->drag_candidate == NULL) {
|
|
man->drag_candidate = box;
|
|
}
|
|
|
|
padding_left = box_x +
|
|
scrollbar_get_offset(box->scroll_x);
|
|
padding_right = padding_left + box->padding[LEFT] +
|
|
box->width + box->padding[RIGHT];
|
|
padding_top = box_y +
|
|
scrollbar_get_offset(box->scroll_y);
|
|
padding_bottom = padding_top + box->padding[TOP] +
|
|
box->height + box->padding[BOTTOM];
|
|
|
|
if ((x > padding_left) &&
|
|
(x < padding_right) &&
|
|
(y > padding_top) &&
|
|
(y < padding_bottom)) {
|
|
/* mouse inside padding box */
|
|
|
|
if ((box->scroll_y != NULL) &&
|
|
(x > (padding_right - SCROLLBAR_WIDTH))) {
|
|
/* mouse above vertical box scroll */
|
|
|
|
man->scroll.bar = box->scroll_y;
|
|
man->scroll.mouse_x = x - (padding_right - SCROLLBAR_WIDTH);
|
|
man->scroll.mouse_y = y - padding_top;
|
|
break;
|
|
|
|
} else if ((box->scroll_x != NULL) &&
|
|
(y > (padding_bottom -
|
|
SCROLLBAR_WIDTH))) {
|
|
/* mouse above horizontal box scroll */
|
|
|
|
man->scroll.bar = box->scroll_x;
|
|
man->scroll.mouse_x = x - padding_left;
|
|
man->scroll.mouse_y = y - (padding_bottom - SCROLLBAR_WIDTH);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (box->text && !box->object) {
|
|
man->text.box = box;
|
|
man->text.box_x = box_x;
|
|
}
|
|
|
|
next_box:
|
|
/* iterate to next box */
|
|
box = box_at_point(&html->unit_len_ctx, box, x, y, &box_x, &box_y);
|
|
} while (box != NULL);
|
|
|
|
/* use of box_x, box_y, or content below this point is probably a
|
|
* mistake; they will refer to the last box returned by box_at_point */
|
|
|
|
assert(man->node != NULL);
|
|
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* process mouse activity on a form gadget
|
|
*/
|
|
static nserror
|
|
gadget_mouse_action(html_content *html,
|
|
browser_mouse_state mouse,
|
|
int x, int y,
|
|
struct mouse_action_state *mas)
|
|
{
|
|
struct content *c = (struct content *)html;
|
|
textarea_mouse_status ta_status;
|
|
union content_msg_data msg_data;
|
|
nserror res;
|
|
bool click;
|
|
click = mouse & (BROWSER_MOUSE_PRESS_1 | BROWSER_MOUSE_PRESS_2 |
|
|
BROWSER_MOUSE_CLICK_1 | BROWSER_MOUSE_CLICK_2 |
|
|
BROWSER_MOUSE_DRAG_1 | BROWSER_MOUSE_DRAG_2);
|
|
|
|
switch (mas->gadget.control->type) {
|
|
case GADGET_SELECT:
|
|
mas->result.status = messages_get("FormSelect");
|
|
mas->result.pointer = BROWSER_POINTER_MENU;
|
|
if (mouse & BROWSER_MOUSE_CLICK_1 &&
|
|
nsoption_bool(core_select_menu)) {
|
|
html->visible_select_menu = mas->gadget.control;
|
|
res = form_open_select_menu(c,
|
|
mas->gadget.control,
|
|
form_select_menu_callback,
|
|
c);
|
|
if (res != NSERROR_OK) {
|
|
NSLOG(netsurf, ERROR, "%s",
|
|
messages_get_errorcode(res));
|
|
html->visible_select_menu = NULL;
|
|
}
|
|
mas->result.pointer = BROWSER_POINTER_DEFAULT;
|
|
} else if (mouse & BROWSER_MOUSE_CLICK_1) {
|
|
msg_data.select_menu.gadget = mas->gadget.control;
|
|
content_broadcast(c,
|
|
CONTENT_MSG_SELECTMENU,
|
|
&msg_data);
|
|
}
|
|
break;
|
|
|
|
case GADGET_CHECKBOX:
|
|
mas->result.status = messages_get("FormCheckbox");
|
|
if (mouse & BROWSER_MOUSE_CLICK_1) {
|
|
mas->gadget.control->selected = !mas->gadget.control->selected;
|
|
dom_html_input_element_set_checked(
|
|
(dom_html_input_element *)(mas->gadget.control->node),
|
|
mas->gadget.control->selected);
|
|
html__redraw_a_box(html, mas->gadget.box);
|
|
}
|
|
break;
|
|
|
|
case GADGET_RADIO:
|
|
mas->result.status = messages_get("FormRadio");
|
|
if (mouse & BROWSER_MOUSE_CLICK_1) {
|
|
form_radio_set(mas->gadget.control);
|
|
}
|
|
break;
|
|
|
|
case GADGET_IMAGE:
|
|
/* This falls through to SUBMIT */
|
|
if (mouse & BROWSER_MOUSE_CLICK_1) {
|
|
struct image_input_coords *coords, *oldcoords;
|
|
/** \todo Find a way to not ignore errors */
|
|
coords = calloc(1, sizeof(*coords));
|
|
if (coords == NULL) {
|
|
return NSERROR_OK;
|
|
}
|
|
coords->x = x - mas->gadget.box_x;
|
|
coords->y = y - mas->gadget.box_y;
|
|
if (dom_node_set_user_data(
|
|
mas->gadget.control->node,
|
|
corestring_dom___ns_key_image_coords_node_data,
|
|
coords,
|
|
html__image_coords_dom_user_data_handler,
|
|
&oldcoords) != DOM_NO_ERR) {
|
|
return NSERROR_OK;
|
|
}
|
|
free(oldcoords);
|
|
}
|
|
/* Fall through */
|
|
|
|
case GADGET_SUBMIT:
|
|
if (mas->gadget.control->form) {
|
|
static char status_buffer[200];
|
|
|
|
snprintf(status_buffer,
|
|
sizeof status_buffer,
|
|
messages_get("FormSubmit"),
|
|
mas->gadget.control->form->action);
|
|
mas->result.status = status_buffer;
|
|
mas->result.pointer = get_pointer_shape(mas->gadget.box,
|
|
false);
|
|
if (mouse & (BROWSER_MOUSE_CLICK_1 |
|
|
BROWSER_MOUSE_CLICK_2)) {
|
|
mas->result.action = ACTION_SUBMIT;
|
|
}
|
|
} else {
|
|
mas->result.status = messages_get("FormBadSubmit");
|
|
}
|
|
break;
|
|
|
|
case GADGET_TEXTBOX:
|
|
case GADGET_PASSWORD:
|
|
case GADGET_TEXTAREA:
|
|
if (mas->gadget.control->type == GADGET_TEXTAREA) {
|
|
mas->result.status = messages_get("FormTextarea");
|
|
} else {
|
|
mas->result.status = messages_get("FormTextbox");
|
|
}
|
|
|
|
if (click &&
|
|
(html->selection_type != HTML_SELECTION_TEXTAREA ||
|
|
html->selection_owner.textarea != mas->gadget.box)) {
|
|
union html_selection_owner sel_owner;
|
|
sel_owner.none = true;
|
|
html_set_selection(html,
|
|
HTML_SELECTION_NONE,
|
|
sel_owner,
|
|
true);
|
|
}
|
|
|
|
ta_status = textarea_mouse_action(mas->gadget.control->data.text.ta,
|
|
mouse,
|
|
x - mas->gadget.box_x,
|
|
y - mas->gadget.box_y);
|
|
|
|
if (ta_status & TEXTAREA_MOUSE_EDITOR) {
|
|
mas->result.pointer = get_pointer_shape(mas->gadget.box, false);
|
|
} else {
|
|
mas->result.pointer = BROWSER_POINTER_DEFAULT;
|
|
mas->result.status = scrollbar_mouse_status_to_message(ta_status >> 3);
|
|
}
|
|
break;
|
|
|
|
case GADGET_HIDDEN:
|
|
/* not possible: no box generated */
|
|
break;
|
|
|
|
case GADGET_RESET:
|
|
mas->result.status = messages_get("FormReset");
|
|
break;
|
|
|
|
case GADGET_FILE:
|
|
mas->result.status = messages_get("FormFile");
|
|
if (mouse & BROWSER_MOUSE_CLICK_1) {
|
|
msg_data.gadget_click.gadget = mas->gadget.control;
|
|
content_broadcast(c,
|
|
CONTENT_MSG_GADGETCLICK,
|
|
&msg_data);
|
|
}
|
|
break;
|
|
|
|
case GADGET_BUTTON:
|
|
/* This gadget cannot be activated */
|
|
mas->result.status = messages_get("FormButton");
|
|
break;
|
|
}
|
|
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* process mouse activity on an iframe
|
|
*/
|
|
static nserror
|
|
iframe_mouse_action(struct browser_window *bw,
|
|
browser_mouse_state mouse,
|
|
int x, int y,
|
|
struct mouse_action_state *mas)
|
|
{
|
|
int pos_x, pos_y;
|
|
float scale;
|
|
|
|
scale = browser_window_get_scale(bw);
|
|
|
|
browser_window_get_position(mas->iframe, false, &pos_x, &pos_y);
|
|
|
|
if (mouse & BROWSER_MOUSE_CLICK_1 ||
|
|
mouse & BROWSER_MOUSE_CLICK_2) {
|
|
browser_window_mouse_click(mas->iframe,
|
|
mouse,
|
|
(x * scale) - pos_x,
|
|
(y * scale) - pos_y);
|
|
} else {
|
|
browser_window_mouse_track(mas->iframe,
|
|
mouse,
|
|
(x * scale) - pos_x,
|
|
(y * scale) - pos_y);
|
|
}
|
|
mas->result.action = ACTION_NOSEND;
|
|
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* process mouse activity on an html object
|
|
*/
|
|
static nserror
|
|
html_object_mouse_action(html_content *html,
|
|
struct browser_window *bw,
|
|
browser_mouse_state mouse,
|
|
int x, int y,
|
|
struct mouse_action_state *mas)
|
|
{
|
|
bool click;
|
|
click = mouse & (BROWSER_MOUSE_PRESS_1 | BROWSER_MOUSE_PRESS_2 |
|
|
BROWSER_MOUSE_CLICK_1 | BROWSER_MOUSE_CLICK_2 |
|
|
BROWSER_MOUSE_DRAG_1 | BROWSER_MOUSE_DRAG_2);
|
|
|
|
if (click &&
|
|
(html->selection_type != HTML_SELECTION_CONTENT ||
|
|
html->selection_owner.content != mas->html_object.box)) {
|
|
union html_selection_owner sel_owner;
|
|
sel_owner.none = true;
|
|
html_set_selection(html, HTML_SELECTION_NONE, sel_owner, true);
|
|
}
|
|
|
|
if (mouse & BROWSER_MOUSE_CLICK_1 ||
|
|
mouse & BROWSER_MOUSE_CLICK_2) {
|
|
content_mouse_action(mas->html_object.box->object,
|
|
bw,
|
|
mouse,
|
|
x - mas->html_object.pos_x,
|
|
y - mas->html_object.pos_y);
|
|
} else {
|
|
content_mouse_track(mas->html_object.box->object,
|
|
bw,
|
|
mouse,
|
|
x - mas->html_object.pos_x,
|
|
y - mas->html_object.pos_y);
|
|
}
|
|
|
|
mas->result.action = ACTION_NOSEND;
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* determine if a url has a javascript scheme
|
|
*
|
|
* \param urm The url to check.
|
|
* \return true if the url is a javascript scheme else false
|
|
*/
|
|
static bool is_javascript_navigate_url(nsurl *url)
|
|
{
|
|
bool is_js = false;
|
|
lwc_string *scheme;
|
|
|
|
scheme = nsurl_get_component(url, NSURL_SCHEME);
|
|
if (scheme != NULL) {
|
|
if (scheme == corestring_lwc_javascript) {
|
|
is_js = true;
|
|
}
|
|
lwc_string_unref(scheme);
|
|
}
|
|
return is_js;
|
|
}
|
|
|
|
|
|
/**
|
|
* process mouse activity on a link
|
|
*/
|
|
static nserror
|
|
link_mouse_action(html_content *html,
|
|
struct browser_window *bw,
|
|
browser_mouse_state mouse,
|
|
int x, int y,
|
|
struct mouse_action_state *mas)
|
|
{
|
|
nserror res;
|
|
char *url_s = NULL;
|
|
size_t url_l = 0;
|
|
static char status_buffer[200];
|
|
union content_msg_data msg_data;
|
|
|
|
if (nsoption_bool(display_decoded_idn) == true) {
|
|
res = nsurl_get_utf8(mas->link.url, &url_s, &url_l);
|
|
if (res != NSERROR_OK) {
|
|
/* Unable to obtain a decoded IDN. This is not
|
|
* a fatal error. Ensure the string pointer
|
|
* is NULL so we use the encoded version.
|
|
*/
|
|
url_s = NULL;
|
|
}
|
|
}
|
|
|
|
if (mas->title) {
|
|
snprintf(status_buffer,
|
|
sizeof status_buffer,
|
|
"%s: %s",
|
|
url_s ? url_s : nsurl_access(mas->link.url),
|
|
mas->title);
|
|
} else {
|
|
snprintf(status_buffer,
|
|
sizeof status_buffer,
|
|
"%s",
|
|
url_s ? url_s : nsurl_access(mas->link.url));
|
|
}
|
|
|
|
if (url_s != NULL) {
|
|
free(url_s);
|
|
}
|
|
|
|
mas->result.status = status_buffer;
|
|
|
|
mas->result.pointer = get_pointer_shape(mas->link.box,
|
|
mas->link.is_imagemap);
|
|
|
|
if (mouse & BROWSER_MOUSE_CLICK_1 &&
|
|
mouse & BROWSER_MOUSE_MOD_1) {
|
|
/* force download of link */
|
|
browser_window_navigate(bw,
|
|
mas->link.url,
|
|
content_get_url((struct content *)html),
|
|
BW_NAVIGATE_DOWNLOAD,
|
|
NULL,
|
|
NULL,
|
|
NULL);
|
|
|
|
} else if (mouse & BROWSER_MOUSE_CLICK_2 &&
|
|
mouse & BROWSER_MOUSE_MOD_1) {
|
|
msg_data.savelink.url = mas->link.url;
|
|
msg_data.savelink.title = mas->title;
|
|
content_broadcast((struct content *)html,
|
|
CONTENT_MSG_SAVELINK,
|
|
&msg_data);
|
|
|
|
} else if (mouse & (BROWSER_MOUSE_CLICK_1 | BROWSER_MOUSE_CLICK_2)) {
|
|
if (is_javascript_navigate_url(mas->link.url)) {
|
|
mas->result.action = ACTION_JS;
|
|
} else {
|
|
mas->result.action = ACTION_GO;
|
|
}
|
|
}
|
|
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* process mouse activity if it is not anything else
|
|
*/
|
|
static nserror
|
|
default_mouse_action(html_content *html,
|
|
struct browser_window *bw,
|
|
browser_mouse_state mouse,
|
|
int x, int y,
|
|
struct mouse_action_state *mas)
|
|
{
|
|
struct content *c = (struct content *)html;
|
|
bool done = false;
|
|
|
|
/* frame resizing */
|
|
if (browser_window_frame_resize_start(bw, mouse, x, y, &mas->result.pointer)) {
|
|
if (mouse & (BROWSER_MOUSE_DRAG_1 | BROWSER_MOUSE_DRAG_2)) {
|
|
mas->result.status = messages_get("FrameDrag");
|
|
}
|
|
done = true;
|
|
}
|
|
|
|
/* if clicking in the main page, remove the selection from any
|
|
* text areas */
|
|
if (!done) {
|
|
union html_selection_owner sel_owner;
|
|
bool click;
|
|
click = mouse & (BROWSER_MOUSE_PRESS_1 | BROWSER_MOUSE_PRESS_2 |
|
|
BROWSER_MOUSE_CLICK_1 | BROWSER_MOUSE_CLICK_2 |
|
|
BROWSER_MOUSE_DRAG_1 | BROWSER_MOUSE_DRAG_2);
|
|
|
|
if (click && html->focus_type != HTML_FOCUS_SELF) {
|
|
union html_focus_owner fo;
|
|
fo.self = true;
|
|
html_set_focus(html, HTML_FOCUS_SELF, fo,
|
|
true, 0, 0, 0, NULL);
|
|
}
|
|
if (click && html->selection_type != HTML_SELECTION_SELF) {
|
|
sel_owner.none = true;
|
|
html_set_selection(html, HTML_SELECTION_NONE,
|
|
sel_owner, true);
|
|
}
|
|
|
|
if (mas->text.box) {
|
|
int pixel_offset;
|
|
size_t idx;
|
|
plot_font_style_t fstyle;
|
|
|
|
font_plot_style_from_css(&html->unit_len_ctx,
|
|
mas->text.box->style,
|
|
&fstyle);
|
|
|
|
guit->layout->position(&fstyle,
|
|
mas->text.box->text,
|
|
mas->text.box->length,
|
|
x - mas->text.box_x,
|
|
&idx,
|
|
&pixel_offset);
|
|
|
|
if (selection_click(html->sel,
|
|
html->bw,
|
|
mouse,
|
|
mas->text.box->byte_offset + idx)) {
|
|
/* key presses must be directed at the
|
|
* main browser window, paste text
|
|
* operations ignored */
|
|
html_drag_type drag_type;
|
|
union html_drag_owner drag_owner;
|
|
|
|
if (selection_dragging(html->sel)) {
|
|
drag_type = HTML_DRAG_SELECTION;
|
|
drag_owner.no_owner = true;
|
|
html_set_drag_type(html,
|
|
drag_type,
|
|
drag_owner,
|
|
NULL);
|
|
mas->result.status = messages_get("Selecting");
|
|
}
|
|
|
|
done = true;
|
|
}
|
|
|
|
} else if (mouse & BROWSER_MOUSE_PRESS_1) {
|
|
sel_owner.none = true;
|
|
selection_clear(html->sel, true);
|
|
}
|
|
|
|
if (selection_active(html->sel)) {
|
|
sel_owner.none = false;
|
|
html_set_selection(html,
|
|
HTML_SELECTION_SELF,
|
|
sel_owner,
|
|
true);
|
|
} else if (click &&
|
|
html->selection_type != HTML_SELECTION_NONE) {
|
|
sel_owner.none = true;
|
|
html_set_selection(html,
|
|
HTML_SELECTION_NONE,
|
|
sel_owner,
|
|
true);
|
|
}
|
|
}
|
|
|
|
if (!done) {
|
|
union content_msg_data msg_data;
|
|
if (mas->title) {
|
|
mas->result.status = mas->title;
|
|
}
|
|
|
|
if (mouse & BROWSER_MOUSE_DRAG_1) {
|
|
if (mouse & BROWSER_MOUSE_MOD_2) {
|
|
msg_data.dragsave.type = CONTENT_SAVE_COMPLETE;
|
|
msg_data.dragsave.content = NULL;
|
|
content_broadcast(c,
|
|
CONTENT_MSG_DRAGSAVE,
|
|
&msg_data);
|
|
} else {
|
|
if (mas->drag_candidate == NULL) {
|
|
browser_window_page_drag_start(bw,
|
|
x, y);
|
|
} else {
|
|
html_box_drag_start(mas->drag_candidate,
|
|
x, y);
|
|
}
|
|
mas->result.pointer = BROWSER_POINTER_MOVE;
|
|
}
|
|
} else if (mouse & BROWSER_MOUSE_DRAG_2) {
|
|
if (mouse & BROWSER_MOUSE_MOD_2) {
|
|
msg_data.dragsave.type = CONTENT_SAVE_SOURCE;
|
|
msg_data.dragsave.content = NULL;
|
|
content_broadcast(c,
|
|
CONTENT_MSG_DRAGSAVE,
|
|
&msg_data);
|
|
} else {
|
|
if (mas->drag_candidate == NULL) {
|
|
browser_window_page_drag_start(bw,
|
|
x, y);
|
|
} else {
|
|
html_box_drag_start(mas->drag_candidate,
|
|
x, y);
|
|
}
|
|
mas->result.pointer = BROWSER_POINTER_MOVE;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (mouse && mouse < BROWSER_MOUSE_MOD_1) {
|
|
/* ensure key presses still act on the browser window */
|
|
union html_focus_owner fo;
|
|
fo.self = true;
|
|
html_set_focus(html, HTML_FOCUS_SELF, fo, true, 0, 0, 0, NULL);
|
|
}
|
|
|
|
return NSERROR_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
* handle non dragging mouse actions
|
|
*/
|
|
static nserror
|
|
mouse_action_drag_none(html_content *html,
|
|
struct browser_window *bw,
|
|
browser_mouse_state mouse,
|
|
int x, int y)
|
|
{
|
|
nserror res;
|
|
struct content *c = (struct content *)html;
|
|
union content_msg_data msg_data;
|
|
lwc_string *path;
|
|
|
|
/**
|
|
* computed state
|
|
*
|
|
* not on heap to avoid allocation or stack because it is large
|
|
*/
|
|
static struct mouse_action_state mas;
|
|
|
|
res = get_mouse_action_node(html, x, y, &mas);
|
|
if (res != NSERROR_OK) {
|
|
return res;
|
|
}
|
|
|
|
if (mas.scroll.bar) {
|
|
mas.result.status = scrollbar_mouse_status_to_message(
|
|
scrollbar_mouse_action(mas.scroll.bar,
|
|
mouse,
|
|
mas.scroll.mouse_x,
|
|
mas.scroll.mouse_y));
|
|
mas.result.pointer = BROWSER_POINTER_DEFAULT;
|
|
|
|
} else if (mas.gadget.control) {
|
|
res = gadget_mouse_action(html, mouse, x, y, &mas);
|
|
|
|
} else if ((mas.object != NULL) && (mouse & BROWSER_MOUSE_MOD_2)) {
|
|
|
|
if (mouse & BROWSER_MOUSE_DRAG_2) {
|
|
msg_data.dragsave.type = CONTENT_SAVE_NATIVE;
|
|
msg_data.dragsave.content = mas.object;
|
|
content_broadcast(c, CONTENT_MSG_DRAGSAVE, &msg_data);
|
|
|
|
} else if (mouse & BROWSER_MOUSE_DRAG_1) {
|
|
msg_data.dragsave.type = CONTENT_SAVE_ORIG;
|
|
msg_data.dragsave.content = mas.object;
|
|
content_broadcast(c, CONTENT_MSG_DRAGSAVE, &msg_data);
|
|
}
|
|
|
|
/* \todo should have a drag-saving object msg */
|
|
|
|
} else if (mas.iframe != NULL) {
|
|
res = iframe_mouse_action(bw, mouse, x, y, &mas);
|
|
|
|
} else if (mas.html_object.box != NULL) {
|
|
res = html_object_mouse_action(html, bw, mouse, x, y, &mas);
|
|
|
|
} else if (mas.link.url != NULL) {
|
|
res = link_mouse_action(html, bw, mouse, x, y, &mas);
|
|
|
|
} else {
|
|
res = default_mouse_action(html, bw, mouse, x, y, &mas);
|
|
|
|
}
|
|
if (res != NSERROR_OK) {
|
|
return res;
|
|
}
|
|
|
|
/* send status and pointer message */
|
|
if (mas.result.action != ACTION_NOSEND) {
|
|
msg_data.explicit_status_text = mas.result.status;
|
|
content_broadcast(c, CONTENT_MSG_STATUS, &msg_data);
|
|
|
|
msg_data.pointer = mas.result.pointer;
|
|
content_broadcast(c, CONTENT_MSG_POINTER, &msg_data);
|
|
}
|
|
|
|
/* fire dom click event */
|
|
if (mouse & BROWSER_MOUSE_CLICK_1) {
|
|
fire_generic_dom_event(corestring_dom_click, mas.node, true, true);
|
|
}
|
|
|
|
/* deferred actions that can cause this browser_window to be destroyed
|
|
* and must therefore be done after set_status/pointer
|
|
*/
|
|
switch (mas.result.action) {
|
|
case ACTION_SUBMIT:
|
|
res = form_submit(content_get_url(c),
|
|
browser_window_find_target(bw,
|
|
mas.gadget.target,
|
|
mouse),
|
|
mas.gadget.control->form,
|
|
mas.gadget.control);
|
|
break;
|
|
|
|
case ACTION_GO:
|
|
res = browser_window_navigate(
|
|
browser_window_find_target(bw,
|
|
mas.link.target,
|
|
mouse),
|
|
mas.link.url,
|
|
content_get_url(c),
|
|
BW_NAVIGATE_HISTORY,
|
|
NULL,
|
|
NULL,
|
|
NULL);
|
|
break;
|
|
|
|
case ACTION_JS:
|
|
path = nsurl_get_component(mas.link.url, NSURL_PATH);
|
|
if (path != NULL) {
|
|
html_exec(c,
|
|
lwc_string_data(path),
|
|
lwc_string_length(path));
|
|
lwc_string_unref(path);
|
|
}
|
|
break;
|
|
|
|
case ACTION_NOSEND:
|
|
case ACTION_NONE:
|
|
res = NSERROR_OK;
|
|
break;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
|
|
/* exported interface documented in html/interaction.h */
|
|
nserror html_mouse_track(struct content *c,
|
|
struct browser_window *bw,
|
|
browser_mouse_state mouse,
|
|
int x, int y)
|
|
{
|
|
return html_mouse_action(c, bw, mouse, x, y);
|
|
}
|
|
|
|
|
|
/* exported interface documented in html/interaction.h */
|
|
nserror
|
|
html_mouse_action(struct content *c,
|
|
struct browser_window *bw,
|
|
browser_mouse_state mouse,
|
|
int x, int y)
|
|
{
|
|
html_content *html = (html_content *)c;
|
|
nserror res;
|
|
|
|
/* handle open select menu */
|
|
if (html->visible_select_menu != NULL) {
|
|
return mouse_action_select_menu(html, bw, mouse, x, y);
|
|
}
|
|
|
|
/* handle content drag */
|
|
switch (html->drag_type) {
|
|
case HTML_DRAG_SELECTION:
|
|
res = mouse_action_drag_selection(html, bw, mouse, x, y);
|
|
break;
|
|
|
|
case HTML_DRAG_SCROLLBAR:
|
|
res = mouse_action_drag_scrollbar(html, bw, mouse, x, y);
|
|
break;
|
|
|
|
case HTML_DRAG_TEXTAREA_SELECTION:
|
|
case HTML_DRAG_TEXTAREA_SCROLLBAR:
|
|
res = mouse_action_drag_textarea(html, bw, mouse, x, y);
|
|
break;
|
|
|
|
case HTML_DRAG_CONTENT_SELECTION:
|
|
case HTML_DRAG_CONTENT_SCROLL:
|
|
res = mouse_action_drag_content(html, bw, mouse, x, y);
|
|
break;
|
|
|
|
case HTML_DRAG_NONE:
|
|
res = mouse_action_drag_none(html, bw, mouse, x, y);
|
|
break;
|
|
|
|
default:
|
|
/* Unknown content related drag type */
|
|
assert(0 && "Unknown content related drag type");
|
|
}
|
|
|
|
if (res != NSERROR_OK) {
|
|
NSLOG(netsurf, ERROR, "%s", messages_get_errorcode(res));
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
|
|
/**
|
|
* Handle keypresses.
|
|
*
|
|
* \param c content of type HTML
|
|
* \param key The UCS4 character codepoint
|
|
* \return true if key handled, false otherwise
|
|
*/
|
|
bool html_keypress(struct content *c, uint32_t key)
|
|
{
|
|
html_content *html = (html_content *) c;
|
|
struct selection *sel = html->sel;
|
|
|
|
/** \todo
|
|
* At the moment, the front end interface for keypress only gives
|
|
* us a UCS4 key value. This doesn't doesn't have all the information
|
|
* we need to fill out the event properly. We don't get to know about
|
|
* modifier keys, and things like CTRL+C are passed in as
|
|
* \ref NS_KEY_COPY_SELECTION, a magic value outside the valid Unicode
|
|
* range.
|
|
*
|
|
* We need to:
|
|
*
|
|
* 1. Update the front end interface so that both press and release
|
|
* events reach the core.
|
|
* 2. Stop encoding the special keys like \ref NS_KEY_COPY_SELECTION as
|
|
* magic values in the front ends, so we just get the events, e.g.:
|
|
* 1. Press ctrl
|
|
* 2. Press c
|
|
* 3. Release c
|
|
* 4. Release ctrl
|
|
* 3. Pass all the new info to the DOM KeyboardEvent events.
|
|
* 4. If there is a focused element, fire the event at that, instead of
|
|
* `html->layout->node`.
|
|
* 5. Rebuild the \ref NS_KEY_COPY_SELECTION values from the info we
|
|
* now get given, and use that for the code below this
|
|
* \ref fire_dom_keyboard_event call.
|
|
* 6. Move the code after this \ref fire_dom_keyboard_event call into
|
|
* the default action handler for DOM events.
|
|
*
|
|
* This will mean that if the JavaScript event listener does
|
|
* `event.preventDefault()` then we won't handle the event when
|
|
* we're not supposed to.
|
|
*/
|
|
if (html->layout != NULL && html->layout->node != NULL) {
|
|
fire_dom_keyboard_event(corestring_dom_keydown,
|
|
html->layout->node, true, true, key);
|
|
}
|
|
|
|
switch (html->focus_type) {
|
|
case HTML_FOCUS_CONTENT:
|
|
return content_keypress(html->focus_owner.content->object, key);
|
|
|
|
case HTML_FOCUS_TEXTAREA:
|
|
if (box_textarea_keypress(html, html->focus_owner.textarea, key) == NSERROR_OK) {
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
|
|
default:
|
|
/* Deal with it below */
|
|
break;
|
|
}
|
|
|
|
switch (key) {
|
|
case NS_KEY_COPY_SELECTION:
|
|
selection_copy_to_clipboard(sel);
|
|
return true;
|
|
|
|
case NS_KEY_CLEAR_SELECTION:
|
|
selection_clear(sel, true);
|
|
return true;
|
|
|
|
case NS_KEY_SELECT_ALL:
|
|
selection_select_all(sel);
|
|
return true;
|
|
|
|
case NS_KEY_ESCAPE:
|
|
/* if there's no selection, leave Escape for the caller */
|
|
return selection_clear(sel, true);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
/**
|
|
* Callback for in-page scrollbars.
|
|
*/
|
|
void html_overflow_scroll_callback(void *client_data,
|
|
struct scrollbar_msg_data *scrollbar_data)
|
|
{
|
|
struct html_scrollbar_data *data = client_data;
|
|
html_content *html = (html_content *)data->c;
|
|
struct box *box = data->box;
|
|
union content_msg_data msg_data;
|
|
html_drag_type drag_type;
|
|
union html_drag_owner drag_owner;
|
|
|
|
switch(scrollbar_data->msg) {
|
|
case SCROLLBAR_MSG_MOVED:
|
|
|
|
if (html->reflowing == true) {
|
|
/* Can't redraw during layout, and it will
|
|
* be redrawn after layout anyway. */
|
|
break;
|
|
}
|
|
|
|
html__redraw_a_box(html, box);
|
|
break;
|
|
case SCROLLBAR_MSG_SCROLL_START:
|
|
{
|
|
struct rect rect = {
|
|
.x0 = scrollbar_data->x0,
|
|
.y0 = scrollbar_data->y0,
|
|
.x1 = scrollbar_data->x1,
|
|
.y1 = scrollbar_data->y1
|
|
};
|
|
drag_type = HTML_DRAG_SCROLLBAR;
|
|
drag_owner.scrollbar = scrollbar_data->scrollbar;
|
|
html_set_drag_type(html, drag_type, drag_owner, &rect);
|
|
}
|
|
break;
|
|
case SCROLLBAR_MSG_SCROLL_FINISHED:
|
|
drag_type = HTML_DRAG_NONE;
|
|
drag_owner.no_owner = true;
|
|
html_set_drag_type(html, drag_type, drag_owner, NULL);
|
|
|
|
msg_data.pointer = BROWSER_POINTER_AUTO;
|
|
content_broadcast(data->c, CONTENT_MSG_POINTER, &msg_data);
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
/* Documented in html_internal.h */
|
|
void html_set_drag_type(html_content *html, html_drag_type drag_type,
|
|
union html_drag_owner drag_owner, const struct rect *rect)
|
|
{
|
|
union content_msg_data msg_data;
|
|
|
|
assert(html != NULL);
|
|
|
|
html->drag_type = drag_type;
|
|
html->drag_owner = drag_owner;
|
|
|
|
switch (drag_type) {
|
|
case HTML_DRAG_NONE:
|
|
assert(drag_owner.no_owner == true);
|
|
msg_data.drag.type = CONTENT_DRAG_NONE;
|
|
break;
|
|
|
|
case HTML_DRAG_SCROLLBAR:
|
|
case HTML_DRAG_TEXTAREA_SCROLLBAR:
|
|
case HTML_DRAG_CONTENT_SCROLL:
|
|
msg_data.drag.type = CONTENT_DRAG_SCROLL;
|
|
break;
|
|
|
|
case HTML_DRAG_SELECTION:
|
|
assert(drag_owner.no_owner == true);
|
|
/* Fall through */
|
|
case HTML_DRAG_TEXTAREA_SELECTION:
|
|
case HTML_DRAG_CONTENT_SELECTION:
|
|
msg_data.drag.type = CONTENT_DRAG_SELECTION;
|
|
break;
|
|
}
|
|
msg_data.drag.rect = rect;
|
|
|
|
/* Inform of the content's drag status change */
|
|
content_broadcast((struct content *)html, CONTENT_MSG_DRAG, &msg_data);
|
|
}
|
|
|
|
/* Documented in html_internal.h */
|
|
void html_set_focus(html_content *html, html_focus_type focus_type,
|
|
union html_focus_owner focus_owner, bool hide_caret,
|
|
int x, int y, int height, const struct rect *clip)
|
|
{
|
|
union content_msg_data msg_data;
|
|
int x_off = 0;
|
|
int y_off = 0;
|
|
struct rect cr;
|
|
bool textarea_lost_focus = html->focus_type == HTML_FOCUS_TEXTAREA &&
|
|
focus_type != HTML_FOCUS_TEXTAREA;
|
|
|
|
assert(html != NULL);
|
|
|
|
switch (focus_type) {
|
|
case HTML_FOCUS_SELF:
|
|
assert(focus_owner.self == true);
|
|
if (html->focus_type == HTML_FOCUS_SELF)
|
|
/* Don't need to tell anyone anything */
|
|
return;
|
|
break;
|
|
|
|
case HTML_FOCUS_CONTENT:
|
|
box_coords(focus_owner.content, &x_off, &y_off);
|
|
break;
|
|
|
|
case HTML_FOCUS_TEXTAREA:
|
|
box_coords(focus_owner.textarea, &x_off, &y_off);
|
|
break;
|
|
}
|
|
|
|
html->focus_type = focus_type;
|
|
html->focus_owner = focus_owner;
|
|
|
|
if (textarea_lost_focus) {
|
|
msg_data.caret.type = CONTENT_CARET_REMOVE;
|
|
} else if (focus_type != HTML_FOCUS_SELF && hide_caret) {
|
|
msg_data.caret.type = CONTENT_CARET_HIDE;
|
|
} else {
|
|
if (clip != NULL) {
|
|
cr = *clip;
|
|
cr.x0 += x_off;
|
|
cr.y0 += y_off;
|
|
cr.x1 += x_off;
|
|
cr.y1 += y_off;
|
|
}
|
|
|
|
msg_data.caret.type = CONTENT_CARET_SET_POS;
|
|
msg_data.caret.pos.x = x + x_off;
|
|
msg_data.caret.pos.y = y + y_off;
|
|
msg_data.caret.pos.height = height;
|
|
msg_data.caret.pos.clip = (clip == NULL) ? NULL : &cr;
|
|
}
|
|
|
|
/* Inform of the content's drag status change */
|
|
content_broadcast((struct content *)html, CONTENT_MSG_CARET, &msg_data);
|
|
}
|
|
|
|
/* Documented in html_internal.h */
|
|
void html_set_selection(html_content *html, html_selection_type selection_type,
|
|
union html_selection_owner selection_owner, bool read_only)
|
|
{
|
|
union content_msg_data msg_data;
|
|
struct box *box;
|
|
bool changed = false;
|
|
bool same_type = html->selection_type == selection_type;
|
|
|
|
assert(html != NULL);
|
|
|
|
if ((selection_type == HTML_SELECTION_NONE &&
|
|
html->selection_type != HTML_SELECTION_NONE) ||
|
|
(selection_type != HTML_SELECTION_NONE &&
|
|
html->selection_type == HTML_SELECTION_NONE))
|
|
/* Existance of selection has changed, and we'll need to
|
|
* inform our owner */
|
|
changed = true;
|
|
|
|
/* Clear any existing selection */
|
|
if (html->selection_type != HTML_SELECTION_NONE) {
|
|
switch (html->selection_type) {
|
|
case HTML_SELECTION_SELF:
|
|
if (same_type)
|
|
break;
|
|
selection_clear(html->sel, true);
|
|
break;
|
|
case HTML_SELECTION_TEXTAREA:
|
|
if (same_type && html->selection_owner.textarea ==
|
|
selection_owner.textarea)
|
|
break;
|
|
box = html->selection_owner.textarea;
|
|
textarea_clear_selection(box->gadget->data.text.ta);
|
|
break;
|
|
case HTML_SELECTION_CONTENT:
|
|
if (same_type && html->selection_owner.content ==
|
|
selection_owner.content)
|
|
break;
|
|
box = html->selection_owner.content;
|
|
content_clear_selection(box->object);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
html->selection_type = selection_type;
|
|
html->selection_owner = selection_owner;
|
|
|
|
if (!changed)
|
|
/* Don't need to report lack of change to owner */
|
|
return;
|
|
|
|
/* Prepare msg */
|
|
switch (selection_type) {
|
|
case HTML_SELECTION_NONE:
|
|
assert(selection_owner.none == true);
|
|
msg_data.selection.selection = false;
|
|
break;
|
|
case HTML_SELECTION_SELF:
|
|
assert(selection_owner.none == false);
|
|
/* fall through */
|
|
case HTML_SELECTION_TEXTAREA:
|
|
case HTML_SELECTION_CONTENT:
|
|
msg_data.selection.selection = true;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
msg_data.selection.read_only = read_only;
|
|
|
|
/* Inform of the content's selection status change */
|
|
content_broadcast((struct content *)html, CONTENT_MSG_SELECTION,
|
|
&msg_data);
|
|
}
|