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When we get a motion notify event, only set of a drag in the core if the mouse has moved at least 5px from where it was pressed. 

svn path=/trunk/netsurf/; revision=11076
This commit is contained in:
Michael Drake 2010-12-16 20:30:10 +00:00
parent b067265bd3
commit ad7283780d
1 changed files with 22 additions and 4 deletions
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26
gtk/gtk_treeview.c
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@ -25,6 +25,7 @@
#include <gdk/gdkkeysyms.h>
#include <gtk/gtk.h>
#include <stdio.h>
#include <limits.h>
#include "desktop/tree.h"
#include "desktop/tree_url_node.h"
@ -41,6 +42,7 @@ struct nsgtk_treeview {
GtkDrawingArea *drawing_area;
int mouse_pressed_x;
int mouse_pressed_y;
int last_x, last_y;
browser_mouse_state mouse_state;
struct tree *tree;
};
@ -263,8 +265,13 @@ gboolean nsgtk_tree_window_button_press_event(GtkWidget *widget,
if (event->state & GDK_CONTROL_MASK)
tw->mouse_state |= BROWSER_MOUSE_MOD_2;
if (event->state & GDK_MOD1_MASK)
tw->mouse_state |= BROWSER_MOUSE_MOD_3;
tw->mouse_state |= BROWSER_MOUSE_MOD_3;
/* Record where we pressed, for use when determining whether to start
* a drag in motion notify events. */
tw->last_x = event->x;
tw->last_y = event->y;
tree_mouse_action(tree, tw->mouse_state, event->x, event->y);
return TRUE;
@ -334,8 +341,19 @@ gboolean nsgtk_tree_window_motion_notify_event(GtkWidget *widget,
bool alt = event->state & GDK_MOD1_MASK;
struct nsgtk_treeview *tw = (struct nsgtk_treeview *) g;
struct tree *tree = tw->tree;
if ((abs(event->x - tw->last_x) < 5) &&
(abs(event->y - tw->last_y) < 5)) {
/* Mouse hasn't moved far enough from press coordinate for this
* to be considered a drag. */
return FALSE;
} else {
/* This is a drag, ensure it's always treated as such, even if
* we drag back over the press location */
tw->last_x = INT_MIN;
tw->last_y = INT_MIN;
}
/* Handle modifiers being removed */
if (tw->mouse_state & BROWSER_MOUSE_MOD_1 && !shift)
tw->mouse_state ^= BROWSER_MOUSE_MOD_1;