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netsurf/desktop/frames.c
Michael Drake c2a718075a A load of refactoring of how content selection and input work. 
Keypresses now go via content interface.
Contents don't shove the selection object into browser windows any more.
Contents report selection existence by sending message.
HTML content keeps track of where selections in it exist.
Contents report whether they have input focus via caret setting msg.
Caret can be hidden (can still input/paste) or removed.
Consolidate textarea selection handling.
Make textarea report its selection status changes to client.
Various textarea fixes.
Changed how we decide when to clear selections, and give focus.
2013-02-22 12:19:35 +00:00

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/*
* Copyright 2006 Richard Wilson <info@tinct.net>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* NetSurf is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/** \file
* Frame and frameset creation and manipulation (implementation).
*/
#include <assert.h>
#include <limits.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <math.h>
#include "utils/config.h"
#include "content/hlcache.h"
#include "desktop/browser_private.h"
#include "desktop/frames.h"
#include "desktop/history_core.h"
#include "desktop/gui.h"
#include "desktop/scrollbar.h"
#include "desktop/selection.h"
#include "utils/log.h"
#include "utils/messages.h"
#include "utils/utils.h"
#include "render/html.h"
#include "render/box.h"
/** maximum frame resize margin */
#define FRAME_RESIZE 6
static bool browser_window_resolve_frame_dimension(struct browser_window *bw,
struct browser_window *sibling, int x, int y, bool width,
bool height);
/**
* Callback for (i)frame scrollbars.
*/
void browser_window_scroll_callback(void *client_data,
struct scrollbar_msg_data *scrollbar_data)
{
struct browser_window *bw = client_data;
switch(scrollbar_data->msg) {
case SCROLLBAR_MSG_MOVED:
if (bw->browser_window_type == BROWSER_WINDOW_IFRAME) {
html_redraw_a_box(bw->parent->current_content, bw->box);
} else {
struct rect rect;
rect.x0 = scrollbar_get_offset(bw->scroll_x);
rect.y0 = scrollbar_get_offset(bw->scroll_y);
rect.x1 = rect.x0 + bw->width;
rect.y1 = rect.y0 + bw->height;
browser_window_update_box(bw, &rect);
}
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
};
if (scrollbar_is_horizontal(scrollbar_data->scrollbar))
browser_window_set_drag_type(bw, DRAGGING_SCR_X, &rect);
else
browser_window_set_drag_type(bw, DRAGGING_SCR_Y, &rect);
}
break;
case SCROLLBAR_MSG_SCROLL_FINISHED:
browser_window_set_drag_type(bw, DRAGGING_NONE, NULL);
browser_window_set_pointer(bw, BROWSER_POINTER_DEFAULT);
break;
}
}
/* exported interface, documented in browser.h */
void browser_window_handle_scrollbars(struct browser_window *bw)
{
hlcache_handle *h = bw->current_content;
bool scroll_x;
bool scroll_y;
int c_width = 0;
int c_height = 0;
assert(!bw->window); /* Core-handled windows only */
if (h != NULL) {
c_width = content_get_width(h);
c_height = content_get_height(h);
}
if (bw->scrolling == SCROLLING_YES) {
scroll_x = true;
scroll_y = true;
} else if (bw->scrolling == SCROLLING_AUTO &&
bw->current_content) {
int bw_width = bw->width;
int bw_height = bw->height;
/* subtract existing scrollbar width */
bw_width -= bw->scroll_y ? SCROLLBAR_WIDTH : 0;
bw_height -= bw->scroll_x ? SCROLLBAR_WIDTH : 0;
scroll_y = (c_height > bw_height) ? true : false;
scroll_x = (c_width > bw_width) ? true : false;
} else {
/* No scrollbars */
scroll_x = false;
scroll_y = false;
}
if (!scroll_x && bw->scroll_x != NULL) {
scrollbar_destroy(bw->scroll_x);
bw->scroll_x = NULL;
}
if (!scroll_y && bw->scroll_y != NULL) {
scrollbar_destroy(bw->scroll_y);
bw->scroll_y = NULL;
}
if (scroll_y) {
int length = bw->height;
int visible = bw->height - (scroll_x ? SCROLLBAR_WIDTH : 0);
if (bw->scroll_y == NULL) {
/* create vertical scrollbar */
if (!scrollbar_create(false, length, c_height, visible,
bw, browser_window_scroll_callback,
&(bw->scroll_y)))
return;
} else {
/* update vertical scrollbar */
scrollbar_set_extents(bw->scroll_y, length,
visible, c_height);
}
}
if (scroll_x) {
int length = bw->width - (scroll_y ? SCROLLBAR_WIDTH : 0);
int visible = length;
if (bw->scroll_x == NULL) {
/* create horizontal scrollbar */
if (!scrollbar_create(true, length, c_width, visible,
bw, browser_window_scroll_callback,
&(bw->scroll_x)))
return;
} else {
/* update horizontal scrollbar */
scrollbar_set_extents(bw->scroll_x, length,
visible, c_width);
}
}
if (scroll_x && scroll_y)
scrollbar_make_pair(bw->scroll_x, bw->scroll_y);
}
/**
* Create and open a iframes for a browser window.
*
* \param bw The browser window to create iframes for
* \param iframe The iframes to create
*/
void browser_window_create_iframes(struct browser_window *bw,
struct content_html_iframe *iframe)
{
struct browser_window *window;
struct content_html_iframe *cur;
struct rect rect;
int iframes = 0;
int index;
for (cur = iframe; cur; cur = cur->next)
iframes++;
bw->iframes = calloc(iframes, sizeof(*bw));
if (!bw->iframes)
return;
bw->iframe_count = iframes;
index = 0;
for (cur = iframe; cur; cur = cur->next) {
window = &(bw->iframes[index++]);
/* Initialise common parts */
browser_window_initialise_common(window, NULL);
/* window characteristics */
window->browser_window_type = BROWSER_WINDOW_IFRAME;
window->scrolling = cur->scrolling;
window->border = cur->border;
window->border_colour = cur->border_colour;
window->no_resize = true;
window->margin_width = cur->margin_width;
window->margin_height = cur->margin_height;
window->scale = bw->scale;
if (cur->name) {
window->name = strdup(cur->name);
if (!window->name)
warn_user("NoMemory", 0);
}
/* linking */
window->box = cur->box;
window->parent = bw;
window->box->iframe = window;
/* iframe dimensions */
box_bounds(window->box, &rect);
browser_window_set_position(window, rect.x0, rect.y0);
browser_window_set_dimensions(window, rect.x1 - rect.x0,
rect.y1 - rect.y0);
}
/* calculate dimensions */
browser_window_update_extent(bw);
browser_window_recalculate_iframes(bw);
index = 0;
for (cur = iframe; cur; cur = cur->next) {
window = &(bw->iframes[index++]);
if (cur->url) {
/* fetch iframe's content */
browser_window_navigate(window,
cur->url,
hlcache_handle_get_url(bw->current_content),
BROWSER_WINDOW_NONE,
NULL,
NULL,
bw->current_content);
}
}
}
/**
* Recalculate iframe positions following a resize.
*
* \param bw The browser window to reposition iframes for
*/
void browser_window_recalculate_iframes(struct browser_window *bw)
{
struct browser_window *window;
int index;
for (index = 0; index < bw->iframe_count; index++) {
window = &(bw->iframes[index]);
if (window != NULL) {
browser_window_handle_scrollbars(window);
}
}
}
/**
* Create and open a frameset for a browser window.
*
* \param bw The browser window to create the frameset for
* \param iframe The frameset to create
*/
void browser_window_create_frameset(struct browser_window *bw,
struct content_html_frames *frameset)
{
int row, col, index;
struct content_html_frames *frame;
struct browser_window *window;
hlcache_handle *parent;
assert(bw && frameset);
/* 1. Create children */
assert(bw->children == NULL);
assert(frameset->cols + frameset->rows != 0);
bw->children = calloc((frameset->cols * frameset->rows), sizeof(*bw));
if (!bw->children)
return;
bw->cols = frameset->cols;
bw->rows = frameset->rows;
for (row = 0; row < bw->rows; row++) {
for (col = 0; col < bw->cols; col++) {
index = (row * bw->cols) + col;
frame = &frameset->children[index];
window = &bw->children[index];
/* Initialise common parts */
browser_window_initialise_common(window, NULL);
/* window characteristics */
if (frame->children)
window->browser_window_type =
BROWSER_WINDOW_FRAMESET;
else
window->browser_window_type =
BROWSER_WINDOW_FRAME;
window->scrolling = frame->scrolling;
window->border = frame->border;
window->border_colour = frame->border_colour;
window->no_resize = frame->no_resize;
window->frame_width = frame->width;
window->frame_height = frame->height;
window->margin_width = frame->margin_width;
window->margin_height = frame->margin_height;
if (frame->name) {
window->name = strdup(frame->name);
if (!window->name)
warn_user("NoMemory", 0);
}
window->scale = bw->scale;
/* linking */
window->parent = bw;
if (window->name)
LOG(("Created frame '%s'", window->name));
else
LOG(("Created frame (unnamed)"));
}
}
/* 2. Calculate dimensions */
browser_window_update_extent(bw);
browser_window_recalculate_frameset(bw);
/* 3. Recurse for grandchildren */
for (row = 0; row < bw->rows; row++) {
for (col = 0; col < bw->cols; col++) {
index = (row * bw->cols) + col;
frame = &frameset->children[index];
window = &bw->children[index];
if (frame->children)
browser_window_create_frameset(window, frame);
}
}
/* Use the URL of the first ancestor window containing html content
* as the referer */
for (window = bw; window->parent; window = window->parent) {
if (window->current_content &&
content_get_type(window->current_content) ==
CONTENT_HTML)
break;
}
parent = window->current_content;
/* 4. Launch content */
for (row = 0; row < bw->rows; row++) {
for (col = 0; col < bw->cols; col++) {
index = (row * bw->cols) + col;
frame = &frameset->children[index];
window = &bw->children[index];
if (frame->url) {
browser_window_navigate(window,
frame->url,
hlcache_handle_get_url(parent),
BROWSER_WINDOW_HISTORY,
NULL,
NULL,
parent);
}
}
}
}
/**
* Recalculate frameset positions following a resize.
*
* \param bw The browser window to reposition framesets for
*/
void browser_window_recalculate_frameset(struct browser_window *bw)
{
int widths[bw->cols][bw->rows];
int heights[bw->cols][bw->rows];
int bw_width, bw_height;
int avail_width, avail_height;
int row, row2, col, index;
struct browser_window *window;
float relative;
int size, extent, applied;
int x, y;
int new_width, new_height;
assert(bw);
/* window dimensions */
if (!bw->parent) {
browser_window_get_dimensions(bw, &bw_width, &bw_height, true);
bw->x = 0;
bw->y = 0;
bw->width = bw_width;
bw->height = bw_height;
} else {
bw_width = bw->width;
bw_height = bw->height;
}
bw_width++;
bw_height++;
/* widths */
for (row = 0; row < bw->rows; row++) {
avail_width = bw_width;
relative = 0;
for (col = 0; col < bw->cols; col++) {
index = (row * bw->cols) + col;
window = &bw->children[index];
switch (window->frame_width.unit) {
case FRAME_DIMENSION_PIXELS:
widths[col][row] = window->frame_width.value *
window->scale;
if (window->border) {
if (col != 0)
widths[col][row] += 1;
if (col != bw->cols - 1)
widths[col][row] += 1;
}
break;
case FRAME_DIMENSION_PERCENT:
widths[col][row] = bw_width *
window->frame_width.value / 100;
break;
case FRAME_DIMENSION_RELATIVE:
widths[col][row] = 0;
relative += window->frame_width.value;
break;
default:
/* unknown frame dimension unit */
assert(window->frame_width.unit ==
FRAME_DIMENSION_PIXELS ||
window->frame_width.unit ==
FRAME_DIMENSION_PERCENT ||
window->frame_width.unit ==
FRAME_DIMENSION_RELATIVE);
break;
}
avail_width -= widths[col][row];
}
/* Redistribute to fit window */
if ((relative > 0) && (avail_width > 0)) {
/* Expand the relative sections to fill remainder */
for (col = 0; col < bw->cols; col++) {
index = (row * bw->cols) + col;
window = &bw->children[index];
if (window->frame_width.unit ==
FRAME_DIMENSION_RELATIVE) {
size = avail_width * window->
frame_width.value /
relative;
avail_width -= size;
relative -= window->frame_width.value;
widths[col][row] += size;
}
}
} else if (bw_width != avail_width) {
/* proportionally distribute error */
extent = avail_width;
applied = 0;
for (col = 0; col < bw->cols; col++) {
if (col == bw->cols - 1) {
/* Last cell, use up remainder */
widths[col][row] += extent - applied;
widths[col][row] =
widths[col][row] < 0 ?
0 : widths[col][row];
} else {
/* Find size of cell adjustment */
size = (widths[col][row] * extent) /
(bw_width - extent);
/* Modify cell */
widths[col][row] += size;
applied += size;
}
}
}
}
/* heights */
for (col = 0; col < bw->cols; col++) {
avail_height = bw_height;
relative = 0;
for (row = 0; row < bw->rows; row++) {
index = (row * bw->cols) + col;
window = &bw->children[index];
switch (window->frame_height.unit) {
case FRAME_DIMENSION_PIXELS:
heights[col][row] = window->frame_height.value *
window->scale;
if (window->border) {
if (row != 0)
heights[col][row] += 1;
if (row != bw->rows - 1)
heights[col][row] += 1;
}
break;
case FRAME_DIMENSION_PERCENT:
heights[col][row] = bw_height *
window->frame_height.value / 100;
break;
case FRAME_DIMENSION_RELATIVE:
heights[col][row] = 0;
relative += window->frame_height.value;
break;
default:
/* unknown frame dimension unit */
assert(window->frame_height.unit ==
FRAME_DIMENSION_PIXELS ||
window->frame_height.unit ==
FRAME_DIMENSION_PERCENT ||
window->frame_height.unit ==
FRAME_DIMENSION_RELATIVE);
break;
}
avail_height -= heights[col][row];
}
if (avail_height == 0)
continue;
/* Redistribute to fit window */
if ((relative > 0) && (avail_height > 0)) {
/* Expand the relative sections to fill remainder */
for (row = 0; row < bw->rows; row++) {
index = (row * bw->cols) + col;
window = &bw->children[index];
if (window->frame_height.unit ==
FRAME_DIMENSION_RELATIVE) {
size = avail_height * window->
frame_height.value /
relative;
avail_height -= size;
relative -= window->frame_height.value;
heights[col][row] += size;
}
}
} else if (bw_height != avail_height) {
/* proportionally distribute error */
extent = avail_height;
applied = 0;
for (row = 0; row < bw->rows; row++) {
if (row == bw->rows - 1) {
/* Last cell, use up remainder */
heights[col][row] += extent - applied;
heights[col][row] =
heights[col][row] < 0 ?
0 : heights[col][row];
} else {
/* Find size of cell adjustment */
size = (heights[col][row] * extent) /
(bw_height - extent);
/* Modify cell */
heights[col][row] += size;
applied += size;
}
}
}
}
/* position frames and calculate children */
for (row = 0; row < bw->rows; row++) {
x = 0;
for (col = 0; col < bw->cols; col++) {
index = (row * bw->cols) + col;
window = &bw->children[index];
y = 0;
for (row2 = 0; row2 < row; row2++)
y+= heights[col][row2];
window->x = x;
window->y = y;
new_width = widths[col][row] - 1;
new_height = heights[col][row] - 1;
if (window->width != new_width ||
window->height != new_height) {
/* Change in frame size */
browser_window_reformat(window, false,
new_width * bw->scale,
new_height * bw->scale);
window->width = new_width;
window->height = new_height;
browser_window_handle_scrollbars(window);
}
x += widths[col][row];
if (window->children)
browser_window_recalculate_frameset(window);
}
}
}
/**
* Resize a browser window that is a frame.
*
* \param bw The browser window to resize
*/
void browser_window_resize_frame(struct browser_window *bw, int x, int y)
{
struct browser_window *parent;
struct browser_window *sibling;
int col = -1, row = -1, i;
bool change = false;
parent = bw->parent;
assert(parent);
/* get frame location */
for (i = 0; i < (parent->cols * parent->rows); i++) {
if (&parent->children[i] == bw) {
col = i % parent->cols;
row = i / parent->cols;
}
}
assert((col >= 0) && (row >= 0));
sibling = NULL;
if (bw->drag_resize_left)
sibling = &parent->children[row * parent->cols + (col - 1)];
else if (bw->drag_resize_right)
sibling = &parent->children[row * parent->cols + (col + 1)];
if (sibling)
change |= browser_window_resolve_frame_dimension(bw, sibling,
x, y, true, false);
sibling = NULL;
if (bw->drag_resize_up)
sibling = &parent->children[(row - 1) * parent->cols + col];
else if (bw->drag_resize_down)
sibling = &parent->children[(row + 1) * parent->cols + col];
if (sibling)
change |= browser_window_resolve_frame_dimension(bw, sibling,
x, y, false, true);
if (change)
browser_window_recalculate_frameset(parent);
}
bool browser_window_resolve_frame_dimension(struct browser_window *bw,
struct browser_window *sibling,
int x, int y, bool width, bool height)
{
int bw_dimension, sibling_dimension;
int bw_pixels, sibling_pixels;
struct frame_dimension *bw_d, *sibling_d;
float total_new;
int frame_size;
assert(!(width && height));
/* extend/shrink the box to the pointer */
if (width) {
if (bw->drag_resize_left)
bw_dimension = bw->x + bw->width - x;
else
bw_dimension = x - bw->x;
bw_pixels = bw->width;
sibling_pixels = sibling->width;
bw_d = &bw->frame_width;
sibling_d = &sibling->frame_width;
frame_size = bw->parent->width;
} else {
if (bw->drag_resize_up)
bw_dimension = bw->y + bw->height - y;
else
bw_dimension = y - bw->y;
bw_pixels = bw->height;
sibling_pixels = sibling->height;
bw_d = &bw->frame_height;
sibling_d = &sibling->frame_height;
frame_size = bw->parent->height;
}
sibling_dimension = bw_pixels + sibling_pixels - bw_dimension;
/* check for no change or no frame size*/
if ((bw_dimension == bw_pixels) || (frame_size == 0))
return false;
/* check for both being 0 */
total_new = bw_dimension + sibling_dimension;
if ((bw_dimension + sibling_dimension) == 0)
return false;
/* our frame dimensions are now known to be:
*
* <-- frame_size --> [VISIBLE PIXELS]
* |<-- bw_pixels -->|<-- sibling_pixels -->| [VISIBLE PIXELS, BEFORE RESIZE]
* |<-- bw_d->value-->|<-- sibling_d->value-->| [SPECIFIED UNITS, BEFORE RESIZE]
* |<--bw_dimension-->|<--sibling_dimension-->| [VISIBLE PIXELS, AFTER RESIZE]
* |<-- total_new -->| [VISIBLE PIXELS, AFTER RESIZE]
*
* when we resize, we must retain the original unit specification such that any
* subsequent resizing of the parent window will recalculate the page as the
* author specified.
*
* if the units of both frames are the same then we can resize the values simply
* by updating the values to be a percentage of the original widths.
*/
if (bw_d->unit == sibling_d->unit) {
float total_specified = bw_d->value + sibling_d->value;
bw_d->value = (total_specified * bw_dimension) / total_new;
sibling_d->value = total_specified - bw_d->value;
return true;
}
/* if one of the sizes is relative then we don't alter the relative width and
* just let it reflow across. the non-relative (pixel/percentage) value can
* simply be resolved to the specified width that will result in the required
* dimension.
*/
if (bw_d->unit == FRAME_DIMENSION_RELATIVE) {
if ((sibling_pixels == 0) && (bw_dimension == 0))
return false;
if (fabs(sibling_d->value) < 0.0001)
bw_d->value = 1;
if (sibling_pixels == 0)
sibling_d->value = (sibling_d->value * bw_pixels) / bw_dimension;
else
sibling_d->value =
(sibling_d->value * sibling_dimension) / sibling_pixels;
/* todo: the availble resize may have changed, update the drag box */
return true;
} else if (sibling_d->unit == FRAME_DIMENSION_RELATIVE) {
if ((bw_pixels == 0) && (sibling_dimension == 0))
return false;
if (fabs(bw_d->value) < 0.0001)
bw_d->value = 1;
if (bw_pixels == 0)
bw_d->value = (bw_d->value * sibling_pixels) / sibling_dimension;
else
bw_d->value = (bw_d->value * bw_dimension) / bw_pixels;
/* todo: the availble resize may have changed, update the drag box */
return true;
}
/* finally we have a pixel/percentage mix. unlike relative values, percentages
* can easily be backwards-calculated as they can simply be scaled like pixel
* values
*/
if (bw_d->unit == FRAME_DIMENSION_PIXELS) {
float total_specified = bw_d->value + frame_size * sibling_d->value / 100;
bw_d->value = (total_specified * bw_dimension) / total_new;
sibling_d->value = (total_specified - bw_d->value) * 100 / frame_size;
return true;
} else if (sibling_d->unit == FRAME_DIMENSION_PIXELS) {
float total_specified = bw_d->value * frame_size / 100 + sibling_d->value;
sibling_d->value = (total_specified * sibling_dimension) / total_new;
bw_d->value = (total_specified - sibling_d->value) * 100 / frame_size;
return true;
}
assert(!"Invalid frame dimension unit");
return false;
}
static bool browser_window_resize_frames(struct browser_window *bw,
browser_mouse_state mouse, int x, int y,
browser_pointer_shape *pointer)
{
struct browser_window *parent;
bool left, right, up, down;
int i, resize_margin;
if ((x < bw->x) || (x > bw->x + bw->width) ||
(y < bw->y) || (y > bw->y + bw->height))
return false;
parent = bw->parent;
if ((!bw->no_resize) && parent) {
resize_margin = FRAME_RESIZE;
if (resize_margin * 2 > bw->width)
resize_margin = bw->width / 2;
left = (x < bw->x + resize_margin);
right = (x > bw->x + bw->width - resize_margin);
resize_margin = FRAME_RESIZE;
if (resize_margin * 2 > bw->height)
resize_margin = bw->height / 2;
up = (y < bw->y + resize_margin);
down = (y > bw->y + bw-> height - resize_margin);
/* check if the edges can actually be moved */
if (left || right || up || down) {
int row = -1, col = -1;
switch (bw->browser_window_type) {
case BROWSER_WINDOW_NORMAL:
case BROWSER_WINDOW_IFRAME:
assert(0);
break;
case BROWSER_WINDOW_FRAME:
case BROWSER_WINDOW_FRAMESET:
break;
}
for (i = 0; i < (parent->cols * parent->rows); i++) {
if (&parent->children[i] == bw) {
col = i % parent->cols;
row = i / parent->cols;
break;
}
}
assert((row >= 0) && (col >= 0));
/* check the sibling frame is within bounds */
left &= (col > 0);
right &= (col < parent->cols - 1);
up &= (row > 0);
down &= (row < parent->rows - 1);
/* check the sibling frames can be resized */
if (left)
left &= !parent->children[row *
parent->cols + (col - 1)].
no_resize;
if (right)
right &= !parent->children[row *
parent->cols + (col + 1)].
no_resize;
if (up)
up &= !parent->children[(row - 1) *
parent->cols + col].
no_resize;
if (down)
down &= !parent->children[(row + 1) *
parent->cols + col].
no_resize;
/* can't have opposite directions simultaneously */
if (up)
down = false;
if (left)
right = false;
}
if (left || right || up || down) {
if (left) {
if (down)
*pointer = BROWSER_POINTER_LD;
else if (up)
*pointer = BROWSER_POINTER_LU;
else
*pointer = BROWSER_POINTER_LEFT;
} else if (right) {
if (down)
*pointer = BROWSER_POINTER_RD;
else if (up)
*pointer = BROWSER_POINTER_RU;
else
*pointer = BROWSER_POINTER_RIGHT;
} else if (up) {
*pointer = BROWSER_POINTER_UP;
} else {
*pointer = BROWSER_POINTER_DOWN;
}
if (mouse & (BROWSER_MOUSE_DRAG_1 |
BROWSER_MOUSE_DRAG_2)) {
/* TODO: Pass appropriate rectangle to allow
* front end to clamp pointer range */
browser_window_set_drag_type(bw,
DRAGGING_FRAME, NULL);
bw->drag_start_x = x;
bw->drag_start_y = y;
bw->drag_resize_left = left;
bw->drag_resize_right = right;
bw->drag_resize_up = up;
bw->drag_resize_down = down;
}
return true;
}
}
if (bw->children) {
for (i = 0; i < (bw->cols * bw->rows); i++)
if (browser_window_resize_frames(&bw->children[i],
mouse, x, y, pointer))
return true;
}
if (bw->iframes) {
for (i = 0; i < bw->iframe_count; i++)
if (browser_window_resize_frames(&bw->iframes[i],
mouse, x, y, pointer))
return true;
}
return false;
}
bool browser_window_frame_resize_start(struct browser_window *bw,
browser_mouse_state mouse, int x, int y,
browser_pointer_shape *pointer)
{
struct browser_window *root = browser_window_get_root(bw);
int offx, offy;
browser_window_get_position(bw, true, &offx, &offy);
return browser_window_resize_frames(root, mouse,
x + offx, y + offy, pointer);
}
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