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54 lines
2.0 KiB
ReStructuredText
54 lines
2.0 KiB
ReStructuredText
7 years ago
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.. Copyright 2018 New Vector Ltd.
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..
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.. Licensed under the Apache License, Version 2.0 (the "License");
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.. you may not use this file except in compliance with the License.
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.. You may obtain a copy of the License at
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..
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.. http://www.apache.org/licenses/LICENSE-2.0
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..
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.. Unless required by applicable law or agreed to in writing, software
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.. distributed under the License is distributed on an "AS IS" BASIS,
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.. WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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.. See the License for the specific language governing permissions and
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.. limitations under the License.
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Sticker Messages
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================
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.. _module:stickers:
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This module allows users to send sticker messages in to rooms or direct
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messaging sessions.
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Sticker messages are specialised image messages that are displayed without
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controls (e.g. no "download" link, or light-box view on click, as would be
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displayed for for `m.image`_ events).
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Sticker messages are intended to provide simple "reaction" events in the message
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timeline. The matrix client should provide some mechanism to display the sticker
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"body" e.g. as a tooltip on hover, or in a modal when the sticker image is
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clicked.
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Events
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------
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Sticker events are received as a single ``m.sticker`` event in the
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``timeline`` section of a room, in a ``/sync``.
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{{m_sticker_event}}
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Client behaviour
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----------------
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Clients supporting this message type should display the image content from the
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event URL directly in the timeline.
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A thumbnail image should be provided in the ``info`` object. This is
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largely intended as a fallback for clients that do not fully support the
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``m.sticker`` event type. In most cases it is fine to set the thumbnail URL to the
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same URL as the main event content.
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It is recommended that sticker image content should be 512x512 pixels in size
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or smaller. The dimensions of the image file should be twice the intended
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display size specified in the ``info`` object in order to assist
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rendering sharp images on higher DPI screens.
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