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Bug 1124904 - cleanup keyboard navigation in the new search panel - separate the logic moving the selection from the logic examining at the keyboard events, r=Mossop.
This commit is contained in:
Florian Quèze
parent
733f615541
commit
a99001cab9
@ -1020,13 +1020,70 @@
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]]></setter>
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</property>
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<method name="advanceSelection">
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<parameter name="aForward"/>
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<parameter name="aSkipSuggestions"/>
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<parameter name="aCycleEngines"/>
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<body><![CDATA[
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let popup = this.popup;
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let list = document.getAnonymousElementByAttribute(popup, "anonid",
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"search-panel-one-offs");
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let selectedButton = this.selectedButton;
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// If the last suggestion is selected, DOWN selects the first button.
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if (!aSkipSuggestions && aForward &&
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popup.selectedIndex + 1 == popup.view.rowCount) {
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this.selectedButton = list.firstChild;
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return false;
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}
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// If a one-off is selected and no suggestion is selected (or we skip them)
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if (selectedButton && (popup.selectedIndex == -1 || aSkipSuggestions)) {
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// cycle through one-off buttons.
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if (aForward)
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this.selectedButton = selectedButton.nextSibling;
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else
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this.selectedButton = selectedButton.previousSibling;
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if (this.selectedButton || aCycleEngines)
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return true;
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// Set the selectedIndex to something that will make
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// handleKeyNavigation (called by autocomplete.xml's onKeyPress
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// method) reset the text field value to what the user typed.
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// Doesn't work when aSkipSuggestions=true, see bug 1124747.
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if (aForward)
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popup.selectedIndex = popup.view.rowCount - 1;
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else
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popup.selectedIndex = popup.view.rowCount;
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return false;
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}
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if (!selectedButton) {
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// If no selection, select the first button or ...
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if (aForward && aSkipSuggestions) {
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this.selectedButton = list.firstChild;
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return true;
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}
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if (!aForward && (aCycleEngines ||
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(!aSkipSuggestions && popup.selectedIndex == -1))) {
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// the last button.
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selectedButton = list.lastChild;
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while (selectedButton.classList.contains("dummy"))
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selectedButton = selectedButton.previousSibling;
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this.selectedButton = selectedButton;
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return true;
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}
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}
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return false;
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]]></body>
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</method>
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<method name="handleKeyboardNavigation">
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<parameter name="aEvent"/>
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<body><![CDATA[
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// XXXFlorian This method could likely be shortened with a helper
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// handling moving the selection within the one-off list and
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// returning a boolean indicating if the event should be stopped.
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let popup = this.popup;
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if (!popup.popupOpen)
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return;
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@ -1042,7 +1099,7 @@
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let list = document.getAnonymousElementByAttribute(popup, "anonid",
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"search-panel-one-offs");
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if (!list)
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if (!list) // remove this check when removing the old search UI.
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return;
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// accel + up/down changes the default engine and shouldn't affect
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@ -1054,108 +1111,26 @@
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#endif
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return;
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let selectedButton = this.selectedButton;
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let stopEvent = false;
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// Alt + up/down is very similar to (shift +) tab but differs in that
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// it loops through the list, whereas tab will move the focus out.
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if (aEvent.altKey &&
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(aEvent.keyCode == KeyEvent.DOM_VK_DOWN ||
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aEvent.keyCode == KeyEvent.DOM_VK_UP)) {
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let forward = aEvent.keyCode == KeyEvent.DOM_VK_DOWN;
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if (selectedButton) {
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// cycle though the list of one-off buttons.
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if (forward)
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this.selectedButton = selectedButton.nextSibling;
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else
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this.selectedButton = selectedButton.previousSibling;
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}
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else {
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// If no selection, select the first or last one-off button.
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if (forward) {
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this.selectedButton = list.firstChild;
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}
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else {
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selectedButton = list.lastChild;
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while (selectedButton.classList.contains("dummy"))
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selectedButton = selectedButton.previousSibling;
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this.selectedButton = selectedButton;
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}
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}
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aEvent.preventDefault();
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aEvent.stopPropagation();
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return;
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stopEvent =
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this.advanceSelection(aEvent.keyCode == KeyEvent.DOM_VK_DOWN,
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true, true);
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}
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else if (aEvent.keyCode == KeyEvent.DOM_VK_DOWN ||
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aEvent.keyCode == KeyEvent.DOM_VK_UP) {
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stopEvent = this.advanceSelection(aEvent.keyCode == KeyEvent.DOM_VK_DOWN);
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}
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else if (aEvent.keyCode == KeyEvent.DOM_VK_TAB) {
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stopEvent = this.advanceSelection(!aEvent.shiftKey, true);
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}
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// If the last suggestion is selected, DOWN selects the first one-off.
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if (aEvent.keyCode == KeyEvent.DOM_VK_DOWN &&
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popup.selectedIndex + 1 == popup.view.rowCount) {
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this.selectedButton = list.firstChild;
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}
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// If no suggestion is selected and a one-off is selected,
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// UP and DOWN cycle through one-off buttons.
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if (popup.selectedIndex == -1 && selectedButton &&
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(aEvent.keyCode == KeyEvent.DOM_VK_DOWN ||
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aEvent.keyCode == KeyEvent.DOM_VK_UP)) {
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if (aEvent.keyCode == KeyEvent.DOM_VK_DOWN)
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this.selectedButton = selectedButton.nextSibling;
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else
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this.selectedButton = selectedButton.previousSibling;
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if (this.selectedButton) {
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aEvent.preventDefault();
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aEvent.stopPropagation();
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}
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else {
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// Set the selectedIndex to something that will make
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// handleKeyNavigation (called by autocomplete.xml's onKeyPress
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// method) reset the text field value to what the user typed.
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if (aEvent.keyCode == KeyEvent.DOM_VK_UP)
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popup.selectedIndex = popup.view.rowCount;
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else
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popup.selectedIndex = popup.view.rowCount - 1;
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}
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}
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// If nothing is selected, UP selects the last one-off button.
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if (aEvent.keyCode == KeyEvent.DOM_VK_UP &&
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popup.selectedIndex == -1 && !selectedButton) {
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selectedButton = list.lastChild;
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while (selectedButton.classList.contains("dummy"))
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selectedButton = selectedButton.previousSibling;
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this.selectedButton = selectedButton;
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aEvent.preventDefault();
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aEvent.stopPropagation();
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}
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if (aEvent.keyCode == KeyEvent.DOM_VK_TAB) {
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if (selectedButton) {
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// TAB cycles though the list of one-off buttons.
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if (aEvent.shiftKey)
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this.selectedButton = selectedButton.previousSibling;
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else
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this.selectedButton = selectedButton.nextSibling;
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// If we are out of the list, revert the text field to what the user typed.
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if (!this.selectedButton) {
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// Set the selectedIndex to something that will make
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// handleKeyNavigation (called by autocomplete.xml's onKeyPress
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// method) reset the text field value to what the user typed.
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popup.selectedIndex = aEvent.shiftKey ? 0 : popup.view.rowCount - 1;
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return;
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}
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}
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else {
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// If no selection, let the focus escape the panel for shift+<tab>
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if (aEvent.shiftKey)
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return;
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// and select the first one-off button for <tab>.
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this.selectedButton = list.firstChild;
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}
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if (stopEvent) {
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aEvent.preventDefault();
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aEvent.stopPropagation();
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}
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