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import './console.scss';
import * as backgroundActions from '../actions/background';
import * as consoleActions from '../actions/console';
import Completion from './completion';
import consoleReducer from '../reducers/console';
// TODO consider object-oriented
var prevValue = "";
var completion = null;
var completionOrigin = "";
let state = consoleReducer(undefined, {});
const keydownMessage = (input) => {
return {
type: 'vimvixen.command.enter',
value: input.value
};
};
const handleBlur = () => {
return browser.runtime.sendMessage(consoleActions.hide());
};
const completeNext = () => {
if (!completion) {
return;
}
let item = completion.next();
if (!item) {
return;
}
let input = window.document.querySelector('#vimvixen-console-command-input');
input.value = completionOrigin + ' ' + item[0].content;
selectCompletion(item[1]);
}
const completePrev = () => {
if (!completion) {
return;
}
let item = completion.prev();
if (!item) {
return;
}
let input = window.document.querySelector('#vimvixen-console-command-input');
input.value = completionOrigin + ' ' + item[0].content;
selectCompletion(item[1]);
}
const handleKeydown = (e) => {
let input = window.document.querySelector('#vimvixen-console-command-input');
switch(e.keyCode) {
case KeyboardEvent.DOM_VK_ESCAPE:
return input.blur();
case KeyboardEvent.DOM_VK_RETURN:
return browser.runtime.sendMessage(keydownMessage(e.target));
case KeyboardEvent.DOM_VK_TAB:
if (e.shiftKey) {
completePrev();
} else {
completeNext();
}
e.stopPropagation();
e.preventDefault();
break;
}
};
const handleKeyup = (e) => {
if (e.keyCode === KeyboardEvent.DOM_VK_TAB) {
return;
}
if (e.target.value === prevValue) {
return;
}
prevValue = e.target.value;
return browser.runtime.sendMessage(
backgroundActions.requestCompletions(e.target.value)
);
};
window.addEventListener('load', () => {
let input = window.document.querySelector('#vimvixen-console-command-input');
input.addEventListener('blur', handleBlur);
input.addEventListener('keydown', handleKeydown);
input.addEventListener('keyup', handleKeyup);
});
const createCompletionTitle = (text) => {
let li = document.createElement('li');
li.className = 'vimvixen-console-completion-title';
li.textContent = text;
return li
}
const createCompletionItem = (icon, caption, url) => {
let captionEle = document.createElement('span');
captionEle.className = 'vimvixen-console-completion-item-caption';
captionEle.textContent = caption
let urlEle = document.createElement('span');
urlEle.className = 'vimvixen-console-completion-item-url';
urlEle.textContent = url
let li = document.createElement('li');
li.style.backgroundImage = 'url(' + icon + ')';
li.className = 'vimvixen-console-completion-item';
li.append(captionEle);
li.append(urlEle);
return li;
}
const selectCompletion = (target) => {
let container = window.document.querySelector('#vimvixen-console-completion');
Array.prototype.forEach.call(container.children, (ele) => {
if (!ele.classList.contains('vimvixen-console-completion-item')) {
return;
}
if (ele === target) {
ele.classList.add('vimvixen-completion-selected');
} else {
ele.classList.remove('vimvixen-completion-selected');
}
});
};
const updateCompletions = (completions) => {
let completionsContainer = window.document.querySelector('#vimvixen-console-completion');
let input = window.document.querySelector('#vimvixen-console-command-input');
completionsContainer.innerHTML = '';
let pairs = [];
for (let group of completions) {
let title = createCompletionTitle(group.name);
completionsContainer.append(title);
for (let item of group.items) {
let li = createCompletionItem(item.icon, item.caption, item.url);
completionsContainer.append(li);
pairs.push([item, li]);
}
}
completion = new Completion(pairs);
completionOrigin = input.value.split(' ')[0];
}
const update = (prevState, state) => {
let error = window.document.querySelector('#vimvixen-console-error');
let command = window.document.querySelector('#vimvixen-console-command');
let input = window.document.querySelector('#vimvixen-console-command-input');
error.style.display = state.errorShown ? 'block' : 'none';
error.textContent = state.errorText;
command.style.display = state.commandShown ? 'block' : 'none';
if (!prevState.commandShown && state.commandShown) {
// setup input on firstly shown
input.value = state.commandText;
input.focus();
}
if (JSON.stringify(state.completions) !== JSON.stringify(prevState.completions)) {
updateCompletions(state.completions);
}
}
browser.runtime.onMessage.addListener((action) => {
let nextState = consoleReducer(state, action);
if (JSON.stringify(nextState) !== JSON.stringify(state)) {
update(state, nextState);
state = nextState;
}
});
window.addEventListener('load', () => {
update({}, state);
});
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