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[IMP] qweb,component: make QWeb an event bus

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closes #197
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Géry Debongnie
2019-06-22 14:44:09 +02:00
parent 63a8fcd7e2
commit 8c8ffb6a6b
6 changed files with 170 additions and 85 deletions
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doc/qweb.md
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@@ -65,16 +65,16 @@ We present here a list of all standard QWeb directives:
The component system in Owl requires additional directives, to express various
needs. Here is a list of all Owl specific directives:
| Name | Description |
| -------------------------------------------- | ----------------------------------------------------------------------------------- |
| Name | Description |
| ------------------------------------------- | ----------------------------------------------------------------------------------- |
| `t-component`, `t-keepalive`, `t-asyncroot` | [Defining a sub component](component.md#composition) |
| `t-ref` | [Setting a reference to a dom node or a sub component](component.md#references) |
| `t-key` | [Defining a key (to help virtual dom reconciliation)](component.md#t-key-directive) |
| `t-on-*` | [Event handling](component.md#event-handling) |
| `t-transition` | [Defining an animation](animations.md#css-transitions) |
| `t-mounted` | [Callback when a node or component is mounted](component.md#t-mounted-directive) |
| `t-slot` | [Rendering a slot](component.md#slots) |
| `t-model` | [Form input bindings](component.md#form-input-bindings) |
| `t-ref` | [Setting a reference to a dom node or a sub component](component.md#references) |
| `t-key` | [Defining a key (to help virtual dom reconciliation)](component.md#t-key-directive) |
| `t-on-*` | [Event handling](component.md#event-handling) |
| `t-transition` | [Defining an animation](animations.md#css-transitions) |
| `t-mounted` | [Callback when a node or component is mounted](component.md#t-mounted-directive) |
| `t-slot` | [Rendering a slot](component.md#slots) |
| `t-model` | [Form input bindings](component.md#form-input-bindings) |
## QWeb Engine
@@ -135,6 +135,11 @@ It's API is quite simple:
qweb.addTemplate("ParentComponent", "<div><Dialog/></div>");
```
In some way, a `QWeb` instance is the core of an Owl application. It is the only
mandatory element of an [environment](component.md#environment). As such, it
has an extra responsability: it can act as an event bus for internal communication
between Owl classes. This is the reason why `QWeb` actually extends [EventBus](event_bus.md).
## Reference
We define in this section the specification of how `QWeb` templates should be