Tk Source Code

\fIsequence\fR (an error occurs if there is no such binding). If both
\fIscript\fR and \fIsequence\fR are omitted then the command returns a list of
all the sequences for which bindings have been defined for \fItagName\fR.
.RS
.PP
The only events for which bindings may be specified are those related to the
mouse and keyboard (such as \fBEnter\fR, \fBLeave\fR, \fBButton\fR,
\fBMotion\fR, and \fBKey\fR) or virtual events. Event bindings for a text
widget use the \fBcurrent\fR mark described under \fBMARKS\fR above. An
\fBMotion\fR, and \fBKey\fR) or virtual events. Mouse and keyboard event
bindings for a text widget respectively use the \fBcurrent\fR and \fBinsert\fR
marks described under \fBMARKS\fR above. An
\fBEnter\fR event triggers for a tag when the tag first becomes present on the
current character, and a \fBLeave\fR event triggers for a tag when it ceases
to be present on the current character. \fBEnter\fR and \fBLeave\fR events can
happen either because the \fBcurrent\fR mark moved or because the character at
that position changed. Note that these events are different than \fBEnter\fR
and \fBLeave\fR events for windows. Mouse and keyboard events are directed to
the current character. If a virtual event is used in a binding, that binding
and \fBLeave\fR events for windows. Mouse events are directed to the current
character, while keyboard events are directed to the insert character.
If a virtual event is used in a binding, that binding
can trigger only if the virtual event is defined by an underlying
mouse-related or keyboard-related event.
.PP
It is possible for the current character to have multiple tags, and for each
of them to have a binding for a particular event sequence. When this occurs,
one binding is invoked for each tag, in order from lowest-priority to highest
priority. If there are multiple matching bindings for a single tag, then the

	    textPtr->flags &= ~BUTTON_DOWN;
	}
	TkTextPickCurrent(textPtr, eventPtr);
    }
    if (!(textPtr->flags & DESTROYED)) {
	const TkSharedText *sharedTextPtr = textPtr->sharedTextPtr;

	if (sharedTextPtr->tagBindingTable && !TkTextTagSetIsEmpty(textPtr->curTagInfoPtr)) {
	    TagBindEvent(textPtr, eventPtr, textPtr->curTagInfoPtr, sharedTextPtr->tagEpoch);
	if (sharedTextPtr->tagBindingTable) {
	    if (!TkTextTagSetIsEmpty(textPtr->curTagInfoPtr)) {
		/*
		 * The mouse is inside the text widget, the 'current' mark was updated.
		 */

		TagBindEvent(textPtr, eventPtr, textPtr->curTagInfoPtr, sharedTextPtr->tagEpoch);
	    } else if ((eventPtr->type == KeyPress) || (eventPtr->type == KeyRelease)) {
		 /*
		  * Key events fire independently of the 'current' mark and use the
		  * 'insert' mark.
		  */

		TkTextIndex index;
		TkTextTagSet *insertTags;

		TkTextMarkNameToIndex(textPtr, "insert", &index);
		insertTags = TkTextIndexGetContentSegment(&index, NULL)->tagInfoPtr;
		if (!TkTextTagSetIsEmpty(insertTags)) {
		    TagBindEvent(textPtr, eventPtr, insertTags, sharedTextPtr->tagEpoch);
		}
	    }
	    if (textPtr->flags & DESTROYED) {
		TkTextDecrRefCountAndTestIfDestroyed(textPtr);
		return;
	    }
	}
    }
    if (repick) {

    event gen .t <ButtonRelease-1> -x $x3 -y $y3 -state 0x300
    lappend x |
    event gen .t <ButtonRelease-2> -x $x3 -y $y3 -state 0x200
    return $x
} -cleanup {
    .t tag delete x y
} -result {x-enter | x-down | | | x-up | x-leave y-enter}

test textTag-15.4 {TkTextBindProc, key event with mouse outside the widget} -setup {
    .t tag delete {*}[.t tag names]
    wm geometry . +200+200 ; update
} -body {
    set res {}
    .t tag add tag1 1.0 end
    .t tag bind tag1 <KeyPress> {lappend res %K}
    .t mark set insert 1.2
    update
    event generate .t <Motion> -warp 1 -x -50 -y -50
    controlPointerWarpTiming
    focus -force .t
    event generate .t <KeyPress> -keysym a
    set res
} -cleanup {
    .t tag delete tag1
} -result {a}


test textTag-16.1 {TkTextPickCurrent procedure} -setup {
    .t tag delete {*}[.t tag names]
    wm geometry . +200+200 ; update
    event generate {} <Motion> -warp 1 -x 5 -y 5
    controlPointerWarpTiming