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Merge pull request #7 from matrix-org/nick-completion

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Implement nick completion (tab-complete).
This commit is contained in:
David Baker 2015-07-16 14:52:46 +01:00
commit 41bab56133
1 changed files with 146 additions and 23 deletions
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131
src/controllers/molecules/MessageComposer.js
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@ -19,10 +19,20 @@ limitations under the License.
var MatrixClientPeg = require("../../MatrixClientPeg");
var dis = require("../../dispatcher");
var KeyCode = {
ENTER: 13,
TAB: 9,
SHIFT: 16
};
module.exports = {
componentDidMount: function() {
componentWillMount: function() {
this.dispatcherRef = dis.register(this.onAction);
this.tabStruct = {
completing: false,
original: null,
index: 0
};
},
componentWillUnmount: function() {
@ -38,9 +48,25 @@ module.exports = {
},
onKeyDown: function (ev) {
if (ev.keyCode == 13) {
var contentText = this.refs.textarea.getDOMNode().value;
if (ev.keyCode === KeyCode.ENTER) {
this.onEnter(ev);
}
else if (ev.keyCode === KeyCode.TAB) {
var members = [];
if (this.props.room) {
members = this.props.room.getJoinedMembers();
}
this.onTab(ev, members);
}
else if (ev.keyCode !== KeyCode.SHIFT && this.tabStruct.completing) {
// they're resuming typing; reset tab complete state vars.
this.tabStruct.completing = false;
this.tabStruct.index = 0;
}
},
onEnter: function(ev) {
var contentText = this.refs.textarea.getDOMNode().value;
var content = null;
if (/^\/me /i.test(contentText)) {
content = {
@ -61,7 +87,104 @@ module.exports = {
});
this.refs.textarea.getDOMNode().value = '';
ev.preventDefault();
}
},
onTab: function(ev, sortedMembers) {
var textArea = this.refs.textarea.getDOMNode();
if (!this.tabStruct.completing) {
this.tabStruct.completing = true;
this.tabStruct.index = 0;
// cache starting text
this.tabStruct.original = textArea.value;
}
// loop in the right direction
if (ev.shiftKey) {
this.tabStruct.index --;
if (this.tabStruct.index < 0) {
// wrap to the last search match, and fix up to a real index
// value after we've matched.
this.tabStruct.index = Number.MAX_VALUE;
}
}
else {
this.tabStruct.index++;
}
var searchIndex = 0;
var targetIndex = this.tabStruct.index;
var text = this.tabStruct.original;
var search = /@?([a-zA-Z0-9_\-:\.]+)$/.exec(text);
// console.log("Searched in '%s' - got %s", text, search);
if (targetIndex === 0) { // 0 is always the original text
textArea.value = text;
}
else if (search && search[1]) {
// console.log("search found: " + search+" from "+text);
var expansion;
// FIXME: could do better than linear search here
for (var i=0; i<sortedMembers.length; i++) {
var member = sortedMembers[i];
if (member.name && searchIndex < targetIndex) {
if (member.name.toLowerCase().indexOf(search[1].toLowerCase()) === 0) {
expansion = member.name;
searchIndex++;
}
}
}
if (searchIndex < targetIndex) { // then search raw mxids
for (var i=0; i<sortedMembers.length; i++) {
if (searchIndex >= targetIndex) {
break;
}
var userId = sortedMembers[i].userId;
// === 1 because mxids are @username
if (userId.toLowerCase().indexOf(search[1].toLowerCase()) === 1) {
expansion = userId;
searchIndex++;
}
}
}
if (searchIndex === targetIndex ||
targetIndex === Number.MAX_VALUE) {
// xchat-style tab complete, add a colon if tab
// completing at the start of the text
if (search[0].length === text.length) {
expansion += ": ";
}
else {
expansion += " ";
}
textArea.value = text.replace(
/@?([a-zA-Z0-9_\-:\.]+)$/, expansion
);
// cancel blink
textArea.style["background-color"] = "";
if (targetIndex === Number.MAX_VALUE) {
// wrap the index around to the last index found
this.tabStruct.index = searchIndex;
targetIndex = searchIndex;
}
}
else {
// console.log("wrapped!");
textArea.style["background-color"] = "#faa";
setTimeout(function() {
textArea.style["background-color"] = "";
}, 150);
textArea.value = text;
this.tabStruct.index = 0;
}
}
else {
this.tabStruct.index = 0;
}
// prevent the default TAB operation (typically focus shifting)
ev.preventDefault();
}
};