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Document RISC OS front end's setup of browser_mouse_state.

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svn path=/trunk/netsurf/; revision=11079
This commit is contained in:
Michael Drake 2010-12-16 21:33:19 +00:00
parent 4960449811
commit ccdafcc4d7
1 changed files with 30 additions and 12 deletions
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42
riscos/window.c
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@ -3089,7 +3089,7 @@ void ro_gui_window_prepare_navigate_all(void) {
/**
* Returns the state of the mouse buttons and modifiers keys for a
* click/release action, suitable for passing to the OS-independent
* mouse action, suitable for passing to the OS-independent
* browser window/ treeview/ etc code.
*
* \param buttons Wimp button state.
@ -3100,38 +3100,53 @@ void ro_gui_window_prepare_navigate_all(void) {
browser_mouse_state ro_gui_mouse_click_state(wimp_mouse_state buttons,
wimp_icon_flags type)
{
browser_mouse_state state = 0;
browser_mouse_state state = 0; /* Blank state with nothing set */
switch (type) {
case wimp_BUTTON_CLICK_DRAG:
if (buttons & (wimp_CLICK_SELECT))
case wimp_BUTTON_CLICK_DRAG: /* Used for browser window */
/* Handle single clicks. */
/* We fire core PRESS and CLICK events together for "action on
* press" behaviour. */
if (buttons & (wimp_CLICK_SELECT)) /* Select click */
state |= BROWSER_MOUSE_PRESS_1 | BROWSER_MOUSE_CLICK_1;
if (buttons & (wimp_CLICK_ADJUST))
if (buttons & (wimp_CLICK_ADJUST)) /* Adjust click */
state |= BROWSER_MOUSE_PRESS_2 | BROWSER_MOUSE_CLICK_2;
break;
case wimp_BUTTON_DOUBLE_CLICK_DRAG:
if (buttons & (wimp_SINGLE_SELECT))
case wimp_BUTTON_DOUBLE_CLICK_DRAG: /* Used for treeview window */
/* Handle single and double clicks. */
/* Single clicks: Fire PRESS and CLICK events together
* for "action on press" behaviour. */
if (buttons & (wimp_SINGLE_SELECT)) /* Select single click */
state |= BROWSER_MOUSE_PRESS_1 | BROWSER_MOUSE_CLICK_1;
if (buttons & (wimp_SINGLE_ADJUST))
if (buttons & (wimp_SINGLE_ADJUST)) /* Adjust single click */
state |= BROWSER_MOUSE_PRESS_2 | BROWSER_MOUSE_CLICK_2;
if (buttons & (wimp_DOUBLE_SELECT))
/* Double clicks: Fire PRESS, CLICK, and DOUBLE_CLICK
* events together for "action on 2nd press" behaviour. */
if (buttons & (wimp_DOUBLE_SELECT)) /* Select double click */
state |= BROWSER_MOUSE_PRESS_1 | BROWSER_MOUSE_CLICK_1 |
BROWSER_MOUSE_DOUBLE_CLICK;
if (buttons & (wimp_DOUBLE_ADJUST))
if (buttons & (wimp_DOUBLE_ADJUST)) /* Adjust double click */
state |= BROWSER_MOUSE_PRESS_2 | BROWSER_MOUSE_CLICK_2 |
BROWSER_MOUSE_DOUBLE_CLICK;
break;
}
/* Check if a drag has started */
if (buttons & (wimp_DRAG_SELECT)) {
/* A drag was _started_ with Select; Fire DRAG_1. */
state |= BROWSER_MOUSE_DRAG_1;
mouse_drag_select = true;
}
if (buttons & (wimp_DRAG_ADJUST)) {
/* A drag was _started_ with Adjust; Fire DRAG_2. */
state |= BROWSER_MOUSE_DRAG_2;
mouse_drag_adjust = true;
}
/* Set modifier key state */
if (ro_gui_shift_pressed()) state |= BROWSER_MOUSE_MOD_1;
if (ro_gui_ctrl_pressed()) state |= BROWSER_MOUSE_MOD_2;
if (ro_gui_alt_pressed()) state |= BROWSER_MOUSE_MOD_3;
@ -3152,7 +3167,7 @@ browser_mouse_state ro_gui_mouse_click_state(wimp_mouse_state buttons,
browser_mouse_state ro_gui_mouse_drag_state(wimp_mouse_state buttons,
wimp_icon_flags type)
{
browser_mouse_state state = 0;
browser_mouse_state state = 0; /* Blank state with nothing set */
switch (type) {
case wimp_BUTTON_CLICK_DRAG:
@ -3163,12 +3178,14 @@ browser_mouse_state ro_gui_mouse_drag_state(wimp_mouse_state buttons,
break;
}
/* If mouse buttons aren't held, turn off drags */
if (!(buttons & (wimp_CLICK_SELECT) || buttons & (wimp_CLICK_ADJUST))) {
mouse_drag_select = false;
mouse_drag_adjust = false;
}
/* Set drag on and record which button the drag is happening with */
/* If there's a drag happening, set DRAG_ON and record which button
* the drag is happening with, i.e. HOLDING_1 or HOLDING_2 */
if (mouse_drag_select) {
state |= BROWSER_MOUSE_DRAG_ON | BROWSER_MOUSE_HOLDING_1;
}
@ -3176,6 +3193,7 @@ browser_mouse_state ro_gui_mouse_drag_state(wimp_mouse_state buttons,
state |= BROWSER_MOUSE_DRAG_ON | BROWSER_MOUSE_HOLDING_2;
}
/* Set modifier key state */
if (ro_gui_shift_pressed()) state |= BROWSER_MOUSE_MOD_1;
if (ro_gui_ctrl_pressed()) state |= BROWSER_MOUSE_MOD_2;
if (ro_gui_alt_pressed()) state |= BROWSER_MOUSE_MOD_3;