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| Original file line number | Diff line number | Diff line change |
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@@ -118,4 +118,4 @@ builtdocs/ | |
| # vscode settings | ||
| .vscode/ | ||
| .vscode/panel.code-workspace | ||
| discover/ | ||
| discover/ | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,120 @@ | ||
| """ | ||
| Defines the Location widget which allows changing the href of the window. | ||
| """ | ||
|
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| import urllib.parse as urlparse | ||
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| import param | ||
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| from ..models.location import Location as _BkLocation | ||
| from ..reactive import Syncable | ||
| from ..util import parse_query | ||
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| class Location(Syncable): | ||
| """ | ||
| The Location component can be made available in a server context | ||
| to provide read and write access to the URL components in the | ||
| browser. | ||
| """ | ||
|
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| href = param.String(readonly=True, doc=""" | ||
| The full url, e.g. 'https://localhost:80?color=blue#interact'""") | ||
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| hostname = param.String(readonly=True, doc=""" | ||
| hostname in window.location e.g. 'panel.holoviz.org'""") | ||
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| pathname = param.String(regex=r"^$|[\/].*$", doc=""" | ||
| pathname in window.location e.g. '/user_guide/Interact.html'""") | ||
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| protocol = param.String(readonly=True, doc=""" | ||
| protocol in window.location e.g. 'http:' or 'https:'""") | ||
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| port = param.String(readonly=True, doc=""" | ||
| port in window.location e.g. '80'""") | ||
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| search = param.String(regex=r"^$|\?", doc=""" | ||
| search in window.location e.g. '?color=blue'""") | ||
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| hash = param.String(regex=r"^$|#", doc=""" | ||
| hash in window.location e.g. '#interact'""") | ||
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| reload = param.Boolean(default=False, doc=""" | ||
| Reload the page when the location is updated. For multipage | ||
| apps this should be set to True, For single page apps this | ||
| should be set to False""") | ||
|
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| # Mapping from parameter name to bokeh model property name | ||
| _rename = {"name": None} | ||
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| def __init__(self, **params): | ||
| super(Location, self).__init__(**params) | ||
| self._synced = [] | ||
| self._syncing = False | ||
| self.param.watch(self._update_synced, ['search']) | ||
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| def _get_model(self, doc, root=None, parent=None, comm=None): | ||
| model = _BkLocation(**self._process_param_change(self._init_properties())) | ||
| root = root or model | ||
| values = dict(self.param.get_param_values()) | ||
| properties = list(self._process_param_change(values)) | ||
| self._models[root.ref['id']] = (model, parent) | ||
| self._link_props(model, properties, doc, root, comm) | ||
| return model | ||
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| def _update_synced(self, event=None): | ||
| if self._syncing: | ||
| return | ||
| query_params = self.query_params | ||
| for p, parameters in self._synced: | ||
| mapping = {v: k for k, v in parameters.items()} | ||
| p.param.set_param(**{mapping[k]: v for k, v in query_params.items() | ||
| if k in mapping}) | ||
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| def _update_query(self, *events, query=None): | ||
| if self._syncing: | ||
| return | ||
| query = query or {} | ||
| for e in events: | ||
| matches = [ps for o, ps in self._synced if o in (e.cls, e.obj)] | ||
| if not matches: | ||
| continue | ||
| query[matches[0][e.name]] = e.new | ||
| self._syncing = True | ||
| try: | ||
| self.update_query(**{k: v for k, v in query.items() if v is not None}) | ||
| finally: | ||
| self._syncing = False | ||
|
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| @property | ||
| def query_params(self): | ||
| return parse_query(self.search) | ||
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| def update_query(self, **kwargs): | ||
| query = self.query_params | ||
| query.update(kwargs) | ||
| self.search = '?' + urlparse.urlencode(query) | ||
|
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| def sync(self, parameterized, parameters=None): | ||
| """ | ||
| Syncs the parameters of a Parameterized object with the query | ||
| parameters in the URL. | ||
| Arguments | ||
| --------- | ||
| parameterized (param.Parameterized): | ||
| The Paramterized object to sync query parameters with | ||
| parameters (list or dict): | ||
| A list or dictionary specifying parameters to sync. | ||
| If a dictionary is supplied it should define a mapping from | ||
| the Parameterized's parameteres to the names of the query | ||
| parameters. | ||
| """ | ||
| parameters = parameters or [p for p in parameterized.param if p != 'name'] | ||
| if not isinstance(parameters, dict): | ||
| parameters = dict(zip(parameters, parameters)) | ||
| self._synced.append((parameterized, parameters)) | ||
| parameterized.param.watch(self._update_query, list(parameters)) | ||
| self._update_synced() | ||
| self._update_query(query={v: getattr(parameterized, k) | ||
| for k, v in parameters.items()}) |
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