1 files changed, 167 insertions, 0 deletions
diff --git a/webapp/components/suggestion/suggestion_box.jsx b/webapp/components/suggestion/suggestion_box.jsx
new file mode 100644
index 000000000..e3ec63194
--- /dev/null
+++ b/webapp/components/suggestion/suggestion_box.jsx
@@ -0,0 +1,167 @@
+// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+import $ from 'jquery';
+import ReactDOM from 'react-dom';
+import Constants from 'utils/constants.jsx';
+import * as GlobalActions from 'action_creators/global_actions.jsx';
+import SuggestionStore from 'stores/suggestion_store.jsx';
+import * as Utils from 'utils/utils.jsx';
+
+const KeyCodes = Constants.KeyCodes;
+
+import React from 'react';
+
+export default class SuggestionBox extends React.Component {
+    constructor(props) {
+        super(props);
+
+        this.handleDocumentClick = this.handleDocumentClick.bind(this);
+
+        this.handleChange = this.handleChange.bind(this);
+        this.handleCompleteWord = this.handleCompleteWord.bind(this);
+        this.handleKeyDown = this.handleKeyDown.bind(this);
+        this.handlePretextChanged = this.handlePretextChanged.bind(this);
+
+        this.suggestionId = Utils.generateId();
+    }
+
+    componentDidMount() {
+        SuggestionStore.registerSuggestionBox(this.suggestionId);
+        $(document).on('click', this.handleDocumentClick);
+
+        SuggestionStore.addCompleteWordListener(this.suggestionId, this.handleCompleteWord);
+        SuggestionStore.addPretextChangedListener(this.suggestionId, this.handlePretextChanged);
+    }
+
+    componentWillUnmount() {
+        SuggestionStore.removeCompleteWordListener(this.suggestionId, this.handleCompleteWord);
+        SuggestionStore.removePretextChangedListener(this.suggestionId, this.handlePretextChanged);
+
+        SuggestionStore.unregisterSuggestionBox(this.suggestionId);
+        $(document).off('click', this.handleDocumentClick);
+    }
+
+    getTextbox() {
+        // this is to support old code that looks at the input/textarea DOM nodes
+        return ReactDOM.findDOMNode(this.refs.textbox);
+    }
+
+    handleDocumentClick(e) {
+        const container = $(ReactDOM.findDOMNode(this));
+        if (!(container.is(e.target) || container.has(e.target).length > 0)) {
+            // we can't just use blur for this because it fires and hides the children before
+            // their click handlers can be called
+            GlobalActions.emitClearSuggestions(this.suggestionId);
+        }
+    }
+
+    handleChange(e) {
+        const textbox = ReactDOM.findDOMNode(this.refs.textbox);
+        const caret = Utils.getCaretPosition(textbox);
+        const pretext = textbox.value.substring(0, caret);
+
+        GlobalActions.emitSuggestionPretextChanged(this.suggestionId, pretext);
+
+        if (this.props.onUserInput) {
+            this.props.onUserInput(textbox.value);
+        }
+
+        if (this.props.onChange) {
+            this.props.onChange(e);
+        }
+    }
+
+    handleCompleteWord(term) {
+        const textbox = ReactDOM.findDOMNode(this.refs.textbox);
+        const caret = Utils.getCaretPosition(textbox);
+
+        const text = this.props.value;
+        const prefix = text.substring(0, caret - SuggestionStore.getMatchedPretext(this.suggestionId).length);
+        const suffix = text.substring(caret);
+
+        if (this.props.onUserInput) {
+            this.props.onUserInput(prefix + term + ' ' + suffix);
+        }
+
+        // set the caret position after the next rendering
+        window.requestAnimationFrame(() => {
+            Utils.setCaretPosition(textbox, prefix.length + term.length + 1);
+        });
+    }
+
+    handleKeyDown(e) {
+        if (SuggestionStore.hasSuggestions(this.suggestionId)) {
+            if (e.which === KeyCodes.UP) {
+                GlobalActions.emitSelectPreviousSuggestion(this.suggestionId);
+                e.preventDefault();
+            } else if (e.which === KeyCodes.DOWN) {
+                GlobalActions.emitSelectNextSuggestion(this.suggestionId);
+                e.preventDefault();
+            } else if (e.which === KeyCodes.ENTER || e.which === KeyCodes.TAB) {
+                GlobalActions.emitCompleteWordSuggestion(this.suggestionId);
+                e.preventDefault();
+            } else if (this.props.onKeyDown) {
+                this.props.onKeyDown(e);
+            }
+        } else if (this.props.onKeyDown) {
+            this.props.onKeyDown(e);
+        }
+    }
+
+    handlePretextChanged(pretext) {
+        for (const provider of this.props.providers) {
+            provider.handlePretextChanged(this.suggestionId, pretext);
+        }
+    }
+
+    render() {
+        const newProps = Object.assign({}, this.props, {
+            onChange: this.handleChange,
+            onKeyDown: this.handleKeyDown
+        });
+
+        let textbox = null;
+        if (this.props.type === 'input') {
+            textbox = (
+                <input
+                    ref='textbox'
+                    type='text'
+                    {...newProps}
+                />
+            );
+        } else if (this.props.type === 'textarea') {
+            textbox = (
+                <textarea
+                    ref='textbox'
+                    {...newProps}
+                />
+            );
+        }
+
+        const SuggestionListComponent = this.props.listComponent;
+
+        return (
+            <div>
+                {textbox}
+                <SuggestionListComponent suggestionId={this.suggestionId}/>
+            </div>
+        );
+    }
+}
+
+SuggestionBox.defaultProps = {
+    type: 'input'
+};
+
+SuggestionBox.propTypes = {
+    listComponent: React.PropTypes.func.isRequired,
+    type: React.PropTypes.oneOf(['input', 'textarea']).isRequired,
+    value: React.PropTypes.string.isRequired,
+    onUserInput: React.PropTypes.func,
+    providers: React.PropTypes.arrayOf(React.PropTypes.object),
+
+    // explicitly name any input event handlers we override and need to manually call
+    onChange: React.PropTypes.func,
+    onKeyDown: React.PropTypes.func
+};