IMEContentObserver notifies IME of 3 notifications at most when editor is changed.
The order is:
1. text change (with merged range if 2 or more change occurred during an edit transaction)
2. selection change (only the latest selection change. other changes occurred before that during an editor transaction are ignored)
3. position change (scrolled, resized, window moved, etc)
This does not check the behavior in designMode because some operation in testWithHTMLEditor() causes unexpected behavior, e.g., moving focus. It *might* be bug of design mode. However, it doesn't matter for this bug. The important thing of this bug is, there should be automated tests for IMEContentObserver. And fortunately, IMEContentObserver does not check the type of editor. So, it's enough to test only contenteditable element for HTMLEditor at least for now. Therefore, I gave up to test it in designMode for now.
MozReview-Commit-ID: 7L6ZlbVMU2P
Some IME may handle WM_KEYDOWN message before application and may set the keycode value to VK_PROCSSKEY but not do actually. Similarly, IME may handle WM_KEYDOWN message and replace following WM_CHAR messages with different characters.
Therefore, even if WM_KEYDOWN message comes with VK_PROCESSKEY, NativeKey shouldn't stop dispatching keypress events if it detects following printable char messages.
MozReview-Commit-ID: DcC2qgcLDrQ
According to ATOK's behavior, IME may send different line breaker from its platform's standard. Therefore, we should treat \r as \n too.
Additionally, currently, TextComposition doesn't allow to input \n with composition. However, this was added for preventing to see odd control characters as boxes with code point. Therefore, we should allow \n for IMEs. (It was allowed, this limitation is unexpected when I reviewed the patch to reject control characters in TextComposition.)
MozReview-Commit-ID: DzGSMgp89Av
Ctrl+Space causes WM_CHAR of ' '. On the other native applications, you can input ' ' with this key combination though, we shouldn't allow this because we need to remove Ctrl and Alt modifier state at dispatching keypress event for the limitation of TextEditor but this is important key combination for custom shortcut keys.
So, when Ctrl or Alt key is pressed but it doesn't change the inputting character, i.e., the character can be inputted without Ctrl or Alt, we shouldn't remove those modifier state from eKeyPress event.
MozReview-Commit-ID: 7omLvNdQWzW
Because of conforming to UI Events KeyboardEvent key Values, when some modifier keys cause not inputting character, the KeyboardEvent.key value should be computed with removing all modifier state except glyph modifier keys.
When Control key is pressed, Cocoa fires odd key events typically. For example, characters isn't computed with same logic of UI Events KeyboardEvent key Values especially when Option key is pressed (see adding testcases for the detail).
Therefore, this patch makes TISInputSourceWrapper::InitKeyEvent() ignore both characters and charactersIgnoringModifiers at computing KeyboardEvent.key value when Control key is pressed and InsertText() isn't called.
On the other hand, this patch does NOT touch the path to compute KeyboardEvent.key when Command key is pressed. It should be changed in different bug because Command key behavior isn't so simple.
MozReview-Commit-ID: dMHgUEOnQw
Bug 1137567 - 1. Allow dispatching key events during composition; r=esawin
We potentially dispatch key events during composition to provide
compatibility for pages that only listen to key events.
Bug 1137567 - 2. Allow keyboard events in DispatchInputEvent when not on APZ thread; r=rbarker
We use nsIWidget::DispatchInputEvent to dispatch our keyboard events on
the Gecko thread, which on Android is not the APZ controller thread. We
should allow these events to pass instead of crashing.
Bug 1137567 - 3. Add GeckoEditableSupport class to support TextEventDispatcher; r=masayuki
Add a separate GeckoEditableSupport class, which implements
TextEventDispatcherListener and uses TextEventDispatcher for IME
operations. The new class is entirely separate from nsWindow to allow it
to be independently used in content processes as well.
Most of the code is copied from nsWindow::GeckoViewSupport, and adapted
to use TextEventDispatcher.
Bug 1137567 - 4. Make nsWindow::WindowPtr available for outside classes; r=snorp
Make nsWindow::WindowPtr available not just for classes inside nsWindow
but for outside classes as well. Also, add support for RefPtr native
objects to nsWindow::NativePtr.
Bug 1137567 - 5. Use GeckoEditableSupport in nsWindow; r=esawin
Use the new GeckoEditableSupport class in nsWindow to replace the
previous code in nsWindow::GeckoViewSupport. GeckoEditable native
methods now go to GeckoEditableSupport instead of GeckoViewSupport.
Several native methods in GeckoEditable are changed from
dispatchTo="proxy" to dispatchTo="gecko", because we no longer need the
special nsWindow::WindowEvent wrapper for our native calls.
Bug 1137567 - 6. Use pushPrefEnv in test_assign_event_data.html; r=masayuki
setAndObserveCompositionPref in test_assign_event_data.html does not
invoke the callback if the pref is already set. This patch changes it to
use SpecialPowers.pushPrefEnv so the callback is always invoked.
This patch is generated by the following sed script:
find . ! -wholename '*/.hg*' -type f \( -iname '*.html' -o -iname '*.xhtml' -o -iname '*.xul' -o -iname '*.js' \) -exec sed -i -e 's/\(\(text\|application\)\/javascript\);version=1.[0-9]/\1/g' {} \;
MozReview-Commit-ID: AzhtdwJwVNg
Bug 1319660 - 1. Don't take shortcut if old replacement ranges don't match; r=esawin
The block at [1] is a shortcut we take when we reconcile Java text
changes with Gecko text changes. However, we only checked that the new
ranges are the same, i.e. that the new Gecko text is the same as the new
Java text. We should also be checking that the old ranges are the same,
i.e. that the replaced Gecko text is the same as the replaced Java text.
[1] https://dxr.mozilla.org/mozilla-central/rev/bbbd2f7539f224a482cc6d2dd10e6a5f31c8baf3/mobile/android/geckoview/src/main/java/org/mozilla/gecko/GeckoEditable.java#1233
Bug 1319660 - 2. Use previous node instead of sibling when adjusting last node; r=masayuki r=smaug
nsContentIterator in pre mode adjusts its last node if the node is a
childless node like <br>. However, right now it's using GetPrevSibling,
which can lead to error in some edge cases such as:
<p></p><div><br></div>
In this case, if the last node is <br> with offset 0, GetPrevSibling
will return <p> because <p> is <br>'s parent's previous sibling, and the
last node will be set to <p>. However, the correct last node in this
case is <div>, because <br> with offset 0 refers to the position to the
left of <br>, which is <div> with offset 0. In this case, PrevNode
returns the correct <div> value, so we should set the last node to the
result of PrevNode.
For the first node, for a childless node in pre mode, GetNextSibling and
NextNode are the same, so there is no bug in this case. Nevertheless,
this patch changes the call to NextNode to be consistent with calling
PrevNode for the last node.
Bug 1319660 - 3. Add test for correctly adjusting last node in content iterator; r=masayuki
Add a test for the previous patch that makes sure querying selected text
in an edge case works correctly.
Bug 1319660 - 4. Add test for start node regression; r=me
Add a new test case for the NextNode() regression. r=me for trivial
test-only patch.
Bug 1319660 - 5. Restore GetNextSibling call for first node of pre-content-iterator; r=smaug
The last patch changed the `GetNextSibling()` call to `NextNode()`
because I assumed they're equivalent in this case. That turned out to
not be the case because we can reach this line even if the node has
children -- the index just has to be after the last child. So this patch
restores the `GetNextSibling` call to restore the correct behavior.
I also added some comment to clarify that we can reach this line due to
one of two conditions: 1) the node has no children; 2) the node has
children but the index is after the last child.
This patch also replaces the `HasChildren()` check when setting
`cChild`. If the index is after the last child (i.e. index ==
childCount), `GetChildAt()` fails and we erroneously log an assertion
warning, even though the input was valid. The new check handles all
cases whether start node has children or not.
Doing QI from nsIEditor to nsIEditorIMESupport doesn't make sense because editor should always support all methods and attributes of nsIEditorIMESupport (it does NOT mean that all nsIEditor implementation need to support IME).
This patch moves all of them to nsIEditor for avoiding redundant QIs.
MozReview-Commit-ID: DzIKuGHG4iy
TextInputHandler::InsertText() dispatches a set of composition events when a key press causes 2 or more characters (Note that InsertText() is typically called only when IME is available because it's called via [NSResponder interpretKeyEvents]). However, this is different from the behavior of Windows. On Windows, NativeKey dispatches two ore more eKeyPress events in this case.
So, for consistency between platforms, TextInputHandler should dispatch eKeyPress events in such case.
MozReview-Commit-ID: EMvaL7sklKf
Now, NativeKey respects following WM_CHAR message. Therefore, we can create a test for bug 1293505 which a function key causes a printable character.
Additionally, bug 1307703 is now fixed by the previous patch. So, let's add automated test for it too.
Finally, now, I found a way to test with some keyboard layouts which are not available on old Windows. Therefore, we should add automated tests for bug 1297985 too.
MozReview-Commit-ID: IqCEPbPYrcQ
This patch creates NativeKey::DispatchKeyPressEventsWithRetrievedCharMessages() for dispatching eKeyPress event with mCommittedCharsAndModifiers when it stores following printable WM_(SYS)CHAR messages.
Using loop for dispatching eKeyPress event for every WM_(SYS)CHAR message is wrong because WidgetKeyboardEvent::mKeyValue is initialized with mCommittedCharsAndModifiers and it causes TextEventDispatcher dispatching multiple eKeyPress events at every call of MaybeDispatchKeypressEvents(). Therefore, if mKeyValue is "^^", eKeyPress event is dispatched 4 times --for the first message, eKeyPress events are fired for each "^" and for the second message, eKeyPress events are fired again for each "^"--. Therefore, when it handles WM_(SYS)KEYDOWN and it causes inputting one or more printable characters, it's the easiest way not to use HandleCharMessage().
The new method calls TextEventDispatcher::MaybeDispatchKeypressEvents() only once and it requests to call the callback method with new argument of MaybeDispatchKeypressEvents() when it needs to dispatch 2 or more eKeyPress events. Then, NativeKey::WillDispatchKeyboardEvent() can set each eKeyPress event to raw information of the message and proper modifier state.
With this change, we can dispatch multiple eKeyPress events with retrieved WM_(SYS)CHAR message information rather than retrieved information from active keyboard layout. Therefore, NeedsToHandleWithoutFollowingCharMessages() doesn't return true even when mCommittedCharsAndModifiers stores two or more characters.
FYI: there is a bug in test_keycodes.xul. That is, Alt+'A' of Greek keyboard layout should cause WM_SYSCHAR with a corresponding Greek character but ASCII characters are specified. Therefore, this patch includes the fix of these bugs
MozReview-Commit-ID: JVm7ZJVug0O
First, mCommittedCharsAndModifiers should be initialized with following char messages because the messages could be different from the information of current keyboard layout.
So, this patch guarantees that mCommittedCharsAndModifiers are same as the user expected when there is one or more WM_CHAR or WM_SYSCHAR messages.
MozReview-Commit-ID: I5Ack0xccoL
This patch makes NativeKey::HandleCharMessage() stop dispatching eKeyPress event when the message is inputting a control character. NativeKey::HandleCharMessage() runs following cases:
1. WM_KEYDOWN followed by a WM_CHAR message whose wParam is not a control character causes inputting printable characters.
2. WM_CHAR message is received without WM_KEYDOWN message.
So, when HandleCharMessage() is called for a control character, it's unusual case. E.g., another application sends only WM_CHAR message with a control character.
On the other hand, Gecko is the only browser which dispatches "keypress" event even if pressed printable key doesn't cause inputting any characters. And such "keypress" event is used for shortcut key handling and some default action handling. So, even if we stop dispatching eKeyPress event from HandleCharMessage(), it shouldn't affect most users.
Note that this patch does NOT change the behavior when the user inputs a control character with usual keyboard layout such as Ctrl+A of en-US keyboard layout because DispatchKeyPressEventsWithoutCharMessage() dispatches eKeyPress event in such cases.
This patch also adds a lot of tests with Ctrl or Alt state for detecting regressions.
MozReview-Commit-ID: KUNqTp7RDSc
Currently, Enter and Backspace keys are handled without following WM_(SYS)CHAR message. However, older code needs hack for them for avoiding conflict with Ctrl+J vs. Ctrl+Enter, etc.
So, we can get rid of them now. And when a keydown causes inputting a control character, NativeKey should handle it with keyboard layout (i.e., without following char message(s)).
MozReview-Commit-ID: 6bVuK0BzFbx
Unfortunately, MapVirtualKeyEx() doesn't compute ABNT C1's scan code from its virtual keycode, 0xC1. Therefore, NativeKeyCodes.js should specify 0x0056 explicitly. Fortunately, this key in physical keyboard always generates the scan code value with any keyboard layouts. Therefore, this can test new regressions as expected.
FYI: ABNT C1 key is a key in Brazilian keyboard. It's at between "ShiftLeft" and "KeyZ".
MozReview-Commit-ID: GmpnFKOsnKD
On Windows, some keys are called "extended key". Their scan code include 0xE000. For example, Enter key in standard position is 0x001C but Numpad's Enter key is 0xE01C. Unfortunately, both of them cause same virtual keycode value, VK_RETURN. Therefore, currently, nsIDOMWindowUtils.sendNativeKey() can synthesize only one native key event of them (only non-extended key's event). Additionally, MapVirtualKeyEx() API with MAPVK_VK_TO_VSC (even with MAPVK_VK_TO_VSC_EX) don't return extended scancode value as expected.
For solving these issues, we should include scan code value to the virtual keycode value at calling sendNativeKey().
Fortunately, virtual keycode value on Windows is 0 ~ 255 (0x00 ~ 0xFF) but aNativeKeyCode of sendNativeKey() is int32_t. So, we can use upper 16 bit for specifying scan code.
This patch explicitly specifies scan code value at defining WIN_VK_* in NativeKeyCodes.js. Additionally, this patch duplicates native virtual keycode definition for Home, End, Insert, Delete, PageUp, PageDown, ArrowUp, ArrowLeft, ArrowDown, ArrowRight and Enter as WIN_VK_* and WIN_VK_NUMPAD_*. This makes automated tests can specify both positions' keys explicitly.
Finally, this patch adds some tests to test_keycodes.xul for testing KeyboardEvent.code value of those keys in both positions.
MozReview-Commit-ID: 8n1rQ71dilg
Unfortunately, MapVirtualKeyEx() doesn't compute ABNT C1's scan code from its virtual keycode, 0xC1. Therefore, NativeKeyCodes.js should specify 0x0056 explicitly. Fortunately, this key in physical keyboard always generates the scan code value with any keyboard layouts. Therefore, this can test new regressions as expected.
FYI: ABNT C1 key is a key in Brazilian keyboard. It's at between "ShiftLeft" and "KeyZ".
MozReview-Commit-ID: GmpnFKOsnKD
On Windows, some keys are called "extended key". Their scan code include 0xE000. For example, Enter key in standard position is 0x001C but Numpad's Enter key is 0xE01C. Unfortunately, both of them cause same virtual keycode value, VK_RETURN. Therefore, currently, nsIDOMWindowUtils.sendNativeKey() can synthesize only one native key event of them (only non-extended key's event). Additionally, MapVirtualKeyEx() API with MAPVK_VK_TO_VSC (even with MAPVK_VK_TO_VSC_EX) don't return extended scancode value as expected.
For solving these issues, we should include scan code value to the virtual keycode value at calling sendNativeKey().
Fortunately, virtual keycode value on Windows is 0 ~ 255 (0x00 ~ 0xFF) but aNativeKeyCode of sendNativeKey() is int32_t. So, we can use upper 16 bit for specifying scan code.
This patch explicitly specifies scan code value at defining WIN_VK_* in NativeKeyCodes.js. Additionally, this patch duplicates native virtual keycode definition for Home, End, Insert, Delete, PageUp, PageDown, ArrowUp, ArrowLeft, ArrowDown, ArrowRight and Enter as WIN_VK_* and WIN_VK_NUMPAD_*. This makes automated tests can specify both positions' keys explicitly.
Finally, this patch adds some tests to test_keycodes.xul for testing KeyboardEvent.code value of those keys in both positions.
MozReview-Commit-ID: 8n1rQ71dilg
