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author | Florian Dold <florian.dold@gmail.com> | 2016-11-13 08:16:12 +0100 |
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committer | Florian Dold <florian.dold@gmail.com> | 2016-11-13 08:16:52 +0100 |
commit | b2128609ac8159a14224deba399144b3400c8c20 (patch) | |
tree | 4759dfda67c54f6838c3aef0951545ae18bb83bd /thirdparty/preact/src/vdom/component.js | |
parent | 3f0ee289c4a61991d0e75906a9bd949cebb39d20 (diff) | |
download | wallet-core-b2128609ac8159a14224deba399144b3400c8c20.tar.xz |
Finally give in and use React, minor tweeks.
Preact (a minimalistic React alternative) had too many bugs ...
Diffstat (limited to 'thirdparty/preact/src/vdom/component.js')
-rw-r--r-- | thirdparty/preact/src/vdom/component.js | 281 |
1 files changed, 0 insertions, 281 deletions
diff --git a/thirdparty/preact/src/vdom/component.js b/thirdparty/preact/src/vdom/component.js deleted file mode 100644 index 64e7ff81f..000000000 --- a/thirdparty/preact/src/vdom/component.js +++ /dev/null @@ -1,281 +0,0 @@ -import { SYNC_RENDER, NO_RENDER, FORCE_RENDER, ASYNC_RENDER, ATTR_KEY } from '../constants'; -import options from '../options'; -import { isFunction, clone, extend } from '../util'; -import { enqueueRender } from '../render-queue'; -import { getNodeProps } from './index'; -import { diff, mounts, diffLevel, flushMounts, removeOrphanedChildren, recollectNodeTree } from './diff'; -import { isFunctionalComponent, buildFunctionalComponent } from './functional-component'; -import { createComponent, collectComponent } from './component-recycler'; -import { removeNode } from '../dom/index'; - - - -/** Set a component's `props` (generally derived from JSX attributes). - * @param {Object} props - * @param {Object} [opts] - * @param {boolean} [opts.renderSync=false] If `true` and {@link options.syncComponentUpdates} is `true`, triggers synchronous rendering. - * @param {boolean} [opts.render=true] If `false`, no render will be triggered. - */ -export function setComponentProps(component, props, opts, context, mountAll) { - if (component._disable) return; - component._disable = true; - - if ((component.__ref = props.ref)) delete props.ref; - if ((component.__key = props.key)) delete props.key; - - if (!component.base || mountAll) { - if (component.componentWillMount) component.componentWillMount(); - } - else if (component.componentWillReceiveProps) { - component.componentWillReceiveProps(props, context); - } - - if (context && context!==component.context) { - if (!component.prevContext) component.prevContext = component.context; - component.context = context; - } - - if (!component.prevProps) component.prevProps = component.props; - component.props = props; - - component._disable = false; - - if (opts!==NO_RENDER) { - if (opts===SYNC_RENDER || options.syncComponentUpdates!==false || !component.base) { - renderComponent(component, SYNC_RENDER, mountAll); - } - else { - enqueueRender(component); - } - } - - if (component.__ref) component.__ref(component); -} - - - -/** Render a Component, triggering necessary lifecycle events and taking High-Order Components into account. - * @param {Component} component - * @param {Object} [opts] - * @param {boolean} [opts.build=false] If `true`, component will build and store a DOM node if not already associated with one. - * @private - */ -export function renderComponent(component, opts, mountAll, isChild) { - if (component._disable) return; - - let skip, rendered, - props = component.props, - state = component.state, - context = component.context, - previousProps = component.prevProps || props, - previousState = component.prevState || state, - previousContext = component.prevContext || context, - isUpdate = component.base, - nextBase = component.nextBase, - initialBase = isUpdate || nextBase, - initialChildComponent = component._component, - inst, cbase; - - // if updating - if (isUpdate) { - component.props = previousProps; - component.state = previousState; - component.context = previousContext; - if (opts!==FORCE_RENDER - && component.shouldComponentUpdate - && component.shouldComponentUpdate(props, state, context) === false) { - skip = true; - } - else if (component.componentWillUpdate) { - component.componentWillUpdate(props, state, context); - } - component.props = props; - component.state = state; - component.context = context; - } - - component.prevProps = component.prevState = component.prevContext = component.nextBase = null; - component._dirty = false; - - if (!skip) { - if (component.render) rendered = component.render(props, state, context); - - // context to pass to the child, can be updated via (grand-)parent component - if (component.getChildContext) { - context = extend(clone(context), component.getChildContext()); - } - - while (isFunctionalComponent(rendered)) { - rendered = buildFunctionalComponent(rendered, context); - } - - let childComponent = rendered && rendered.nodeName, - toUnmount, base; - - if (isFunction(childComponent)) { - // set up high order component link - - - inst = initialChildComponent; - let childProps = getNodeProps(rendered); - - if (inst && inst.constructor===childComponent) { - setComponentProps(inst, childProps, SYNC_RENDER, context); - } - else { - toUnmount = inst; - - inst = createComponent(childComponent, childProps, context); - inst.nextBase = inst.nextBase || nextBase; - inst._parentComponent = component; - component._component = inst; - setComponentProps(inst, childProps, NO_RENDER, context); - renderComponent(inst, SYNC_RENDER, mountAll, true); - } - - base = inst.base; - } - else { - cbase = initialBase; - - // destroy high order component link - toUnmount = initialChildComponent; - if (toUnmount) { - cbase = component._component = null; - } - - if (initialBase || opts===SYNC_RENDER) { - if (cbase) cbase._component = null; - base = diff(cbase, rendered, context, mountAll || !isUpdate, initialBase && initialBase.parentNode, true); - } - } - - if (initialBase && base!==initialBase && inst!==initialChildComponent) { - let baseParent = initialBase.parentNode; - if (baseParent && base!==baseParent) { - baseParent.replaceChild(base, initialBase); - - if (!toUnmount) { - initialBase._component = null; - recollectNodeTree(initialBase); - } - } - } - - if (toUnmount) { - unmountComponent(toUnmount, base!==initialBase); - } - - component.base = base; - if (base && !isChild) { - let componentRef = component, - t = component; - while ((t=t._parentComponent)) { - (componentRef = t).base = base; - } - base._component = componentRef; - base._componentConstructor = componentRef.constructor; - } - } - - if (!isUpdate || mountAll) { - mounts.unshift(component); - } - else if (!skip) { - if (component.componentDidUpdate) { - component.componentDidUpdate(previousProps, previousState, previousContext); - } - if (options.afterUpdate) options.afterUpdate(component); - } - - let cb = component._renderCallbacks, fn; - if (cb) while ( (fn = cb.pop()) ) fn.call(component); - - if (!diffLevel && !isChild) flushMounts(); -} - - - -/** Apply the Component referenced by a VNode to the DOM. - * @param {Element} dom The DOM node to mutate - * @param {VNode} vnode A Component-referencing VNode - * @returns {Element} dom The created/mutated element - * @private - */ -export function buildComponentFromVNode(dom, vnode, context, mountAll) { - let c = dom && dom._component, - oldDom = dom, - isDirectOwner = c && dom._componentConstructor===vnode.nodeName, - isOwner = isDirectOwner, - props = getNodeProps(vnode); - while (c && !isOwner && (c=c._parentComponent)) { - isOwner = c.constructor===vnode.nodeName; - } - - if (c && isOwner && (!mountAll || c._component)) { - setComponentProps(c, props, ASYNC_RENDER, context, mountAll); - dom = c.base; - } - else { - if (c && !isDirectOwner) { - unmountComponent(c, true); - dom = oldDom = null; - } - - c = createComponent(vnode.nodeName, props, context); - if (dom && !c.nextBase) { - c.nextBase = dom; - // passing dom/oldDom as nextBase will recycle it if unused, so bypass recycling on L241: - oldDom = null; - } - setComponentProps(c, props, SYNC_RENDER, context, mountAll); - dom = c.base; - - if (oldDom && dom!==oldDom) { - oldDom._component = null; - recollectNodeTree(oldDom); - } - } - - return dom; -} - - - -/** Remove a component from the DOM and recycle it. - * @param {Element} dom A DOM node from which to unmount the given Component - * @param {Component} component The Component instance to unmount - * @private - */ -export function unmountComponent(component, remove) { - if (options.beforeUnmount) options.beforeUnmount(component); - - // console.log(`${remove?'Removing':'Unmounting'} component: ${component.constructor.name}`); - let base = component.base; - - component._disable = true; - - if (component.componentWillUnmount) component.componentWillUnmount(); - - component.base = null; - - // recursively tear down & recollect high-order component children: - let inner = component._component; - if (inner) { - unmountComponent(inner, remove); - } - else if (base) { - if (base[ATTR_KEY] && base[ATTR_KEY].ref) base[ATTR_KEY].ref(null); - - component.nextBase = base; - - if (remove) { - removeNode(base); - collectComponent(component); - } - removeOrphanedChildren(base.childNodes, !remove); - } - - if (component.__ref) component.__ref(null); - if (component.componentDidUnmount) component.componentDidUnmount(); -} |