Bug 1182208 - Add support for android scrolling and range accessibility actions. r=mfinkle r=yzen

This commit is contained in:
Eitan Isaacson 2015-08-21 11:32:57 -07:00
Родитель 6006fe1ee6
Коммит 3aee5343dc
5 изменённых файлов: 65 добавлений и 1 удалений

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@ -134,6 +134,8 @@ this.AccessFu = { // jshint ignore:line
Services.obs.addObserver(this, 'Accessibility:Focus', false);
Services.obs.addObserver(this, 'Accessibility:ActivateObject', false);
Services.obs.addObserver(this, 'Accessibility:LongPress', false);
Services.obs.addObserver(this, 'Accessibility:ScrollForward', false);
Services.obs.addObserver(this, 'Accessibility:ScrollBackward', false);
Services.obs.addObserver(this, 'Accessibility:MoveByGranularity', false);
Utils.win.addEventListener('TabOpen', this);
Utils.win.addEventListener('TabClose', this);
@ -187,6 +189,8 @@ this.AccessFu = { // jshint ignore:line
Services.obs.removeObserver(this, 'Accessibility:Focus');
Services.obs.removeObserver(this, 'Accessibility:ActivateObject');
Services.obs.removeObserver(this, 'Accessibility:LongPress');
Services.obs.removeObserver(this, 'Accessibility:ScrollForward');
Services.obs.removeObserver(this, 'Accessibility:ScrollBackward');
Services.obs.removeObserver(this, 'Accessibility:MoveByGranularity');
delete this._quicknavModesPref;
@ -315,6 +319,12 @@ this.AccessFu = { // jshint ignore:line
case 'Accessibility:LongPress':
this.Input.sendContextMenuMessage();
break;
case 'Accessibility:ScrollForward':
this.Input.androidScroll('forward');
break;
case 'Accessibility:ScrollBackward':
this.Input.androidScroll('backward');
break;
case 'Accessibility:Focus':
this._focused = JSON.parse(aData);
if (this._focused) {
@ -837,6 +847,12 @@ var Input = {
adjustRange: aAdjustRange });
},
androidScroll: function androidScroll(aDirection) {
let mm = Utils.getMessageManager(Utils.CurrentBrowser);
mm.sendAsyncMessage('AccessFu:AndroidScroll',
{ direction: aDirection, origin: 'top' });
},
moveByGranularity: function moveByGranularity(aDetails) {
const MOVEMENT_GRANULARITY_PARAGRAPH = 8;

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@ -38,7 +38,8 @@ this.ContentControl.prototype = {
'AccessFu:AutoMove',
'AccessFu:Activate',
'AccessFu:MoveCaret',
'AccessFu:MoveByGranularity'],
'AccessFu:MoveByGranularity',
'AccessFu:AndroidScroll'],
start: function cc_start() {
let cs = this._contentScope.get();
@ -91,6 +92,27 @@ this.ContentControl.prototype = {
}
},
handleAndroidScroll: function cc_handleAndroidScroll(aMessage) {
let vc = this.vc;
let position = vc.position;
if (aMessage.json.origin != 'child' && this.sendToChild(vc, aMessage)) {
// Forwarded succesfully to child cursor.
return;
}
// Counter-intuitive, but scrolling backward (ie. up), actually should
// increase range values.
if (this.adjustRange(position, aMessage.json.direction === 'backward')) {
return;
}
this._contentScope.get().sendAsyncMessage('AccessFu:DoScroll',
{ bounds: Utils.getBounds(position, true),
page: aMessage.json.direction === 'forward' ? 1 : -1,
horizontal: false });
},
handleMoveCursor: function cc_handleMoveCursor(aMessage) {
let origin = aMessage.json.origin;
let action = aMessage.json.action;

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@ -391,6 +391,20 @@ var ContentMessages = {
}
},
androidScrollForward: function adjustUp() {
return {
name: 'AccessFu:AndroidScroll',
json: { origin: 'top', direction: 'forward' }
};
},
androidScrollBackward: function adjustDown() {
return {
name: 'AccessFu:AndroidScroll',
json: { origin: 'top', direction: 'backward' }
};
},
focusSelector: function focusSelector(aSelector, aBlur) {
return {
name: 'AccessFuTest:Focus',

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@ -81,6 +81,8 @@
[ContentMessages.simpleMovePrevious,
new ExpectedCursorChange(['much range', '6', {'string': 'slider'}, 'such app'])],
[ContentMessages.moveOrAdjustDown(), new ExpectedValueChange('5')],
[ContentMessages.androidScrollForward(), new ExpectedValueChange('6')],
[ContentMessages.androidScrollBackward(), new ExpectedValueChange('5')],
[ContentMessages.simpleMovePrevious,
new ExpectedCursorChange(['much range', {'string': 'label'}])],
[ContentMessages.simpleMovePrevious,

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@ -348,6 +348,8 @@ public class GeckoAccessibility {
info.addAction(AccessibilityNodeInfo.ACTION_LONG_CLICK);
info.addAction(AccessibilityNodeInfo.ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY);
info.addAction(AccessibilityNodeInfo.ACTION_NEXT_AT_MOVEMENT_GRANULARITY);
info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD);
info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD);
info.setMovementGranularities(AccessibilityNodeInfo.MOVEMENT_GRANULARITY_CHARACTER |
AccessibilityNodeInfo.MOVEMENT_GRANULARITY_WORD |
AccessibilityNodeInfo.MOVEMENT_GRANULARITY_PARAGRAPH);
@ -388,6 +390,14 @@ public class GeckoAccessibility {
GeckoAppShell.
sendEventToGecko(GeckoEvent.createBroadcastEvent("Accessibility:LongPress", null));
return true;
} else if (action == AccessibilityNodeInfo.ACTION_SCROLL_FORWARD && virtualViewId == VIRTUAL_CURSOR_POSITION) {
GeckoAppShell.
sendEventToGecko(GeckoEvent.createBroadcastEvent("Accessibility:ScrollForward", null));
return true;
} else if (action == AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD && virtualViewId == VIRTUAL_CURSOR_POSITION) {
GeckoAppShell.
sendEventToGecko(GeckoEvent.createBroadcastEvent("Accessibility:ScrollBackward", null));
return true;
} else if (action == AccessibilityNodeInfo.ACTION_NEXT_AT_MOVEMENT_GRANULARITY &&
virtualViewId == VIRTUAL_CURSOR_POSITION) {
// XXX: Self brailling gives this action with a bogus argument instead of an actual click action;