aboutsummaryrefslogtreecommitdiff
path: root/ui/messages/html/entity.go
blob: d95e0eb07cb29ce4457799cb79ad4b4ce8b3e1f2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
// gomuks - A terminal Matrix client written in Go.
// Copyright (C) 2020 Tulir Asokan
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

package html

import (
	"maunium.net/go/mauview"
	"maunium.net/go/tcell"
)

// AdjustStyleFunc is a lambda function type to edit an existing tcell Style.
type AdjustStyleFunc func(tcell.Style) tcell.Style

type Entity interface {
	// AdjustStyle recursively changes the style of the entity and all its children.
	AdjustStyle(AdjustStyleFunc) Entity
	// Draw draws the entity onto the given mauview Screen.
	Draw(screen mauview.Screen)
	// IsBlock returns whether or not it's a block-type entity.
	IsBlock() bool
	// GetTag returns the HTML tag of the entity.
	GetTag() string
	// PlainText returns the plaintext content in the entity and all its children.
	PlainText() string
	// String returns a string representation of the entity struct.
	String() string
	// Clone creates a deep copy of the entity.
	Clone() Entity

	// Height returns the render height of the entity.
	Height() int
	// CalculateBuffer prepares the entity and all its children for rendering with the given parameters
	CalculateBuffer(width, startX int, bare bool) int

	getStartX() int
}